Building ventilation device with pressure difference adjusting function

Abstract

The utility model discloses a building ventilation device with a pressure difference adjusting function, and relates to the field of building ventilation, the building ventilation device comprises a ventilation pipe, a supporting plate is fixed in the ventilation pipe, a ventilation fan is fixed on the supporting plate, two symmetrical sealing plates are fixed on the ventilation pipe, and pressure difference sensors are fixed on the two sealing plates. A filter plate is arranged at one end of the ventilation pipe, a cleaning mechanism is arranged between the filter plate and the ventilation pipe, and a dehumidification mechanism is arranged on the ventilation pipe. After the filter plate is used for a long time, the cleaning mechanism cleans the filter plate and enables dust particles attached to the filter plate to fall off, when outside air enters the building from the ventilation pipe, the air penetrates through the dehumidification mechanism and is dried by the dehumidification mechanism, then the air enters the building, and therefore the situation that the dust particles block the filter plate can be reduced, and the service life of the building is prolonged. The possibility that the air normally passes through the filter plate is influenced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of building ventilation, in particular to a building ventilation device with pressure difference regulation function. BACKGROUND

[0002] The building ventilation device with pressure difference regulation function is a ventilation equipment capable of automatically adjusting the air volume and pressure of each part in the ventilation system according to the change of indoor and outdoor pressure difference, so as to maintain the stability of indoor air environment and meet the specific pressure difference requirement. It is usually composed of a ventilation duct, a supply and exhaust air system, a pressure difference sensor, a controller and a regulating valve.

[0003] The ventilation duct in the ventilation device is connected to the outside of the building and the inside of the building. In order to reduce the dust particles in the outside air from entering the building along the ventilation duct, a filter plate is usually fixed in the ventilation duct to block the dust particles in the air.

[0004] The air outside the building may be scattered with dust particles and oil stains due to reasons such as traffic tools and factory production. When the dust particles and oil stains come into contact with the filter plate, they may be attached to the filter plate, causing the filter plate to be blocked, and the outside air may not pass through the filter plate smoothly. CONTENT OF THE INVENTION

[0005] The present application aims to solve the problem that the dust particles and oil stains may be attached to the filter plate when they come into contact with the filter plate, causing the filter plate to be blocked, and the outside air may not pass through the filter plate smoothly. The present application provides a building ventilation device with pressure difference regulation function.

[0006] In order to achieve the above-mentioned purpose, the present application specifically adopts the following technical scheme:

[0007] The building ventilation device with pressure difference regulation function comprises a ventilation duct, a support plate fixed in the ventilation duct, a ventilation fan fixed on the support plate, two symmetrical sealing plates fixed on the ventilation duct, a pressure difference sensor fixed on each of the two sealing plates, a filter plate provided at one end of the ventilation duct, a cleaning mechanism provided between the filter plate and the ventilation duct, and a dehumidifying mechanism provided on the ventilation duct.

[0008] By adopting the above-mentioned technical scheme, the cleaning mechanism can clean the filter plate after a long time of use, so that the dust particles attached to the filter plate can fall off. When the outside air enters the building from the ventilation duct, the air passes through the dehumidifying mechanism, which dries the air, and then the air enters the building, thereby reducing the possibility that the dust particles block the filter plate and affect the normal passage of air through the filter plate.

[0009] Further, the cleaning mechanism comprises a support frame I fixed on the ventilation pipe, a support frame II is arranged on the support frame I, the support frame II is fixedly connected with the filter plate, the support frame I and the support frame II are slidingly connected, an oscillation assembly is arranged between the support frame I and the support frame II, and a resisting assembly is arranged between the support frame I and the filter plate.

[0010] By adopting the above technical scheme, the vibration assembly drives the support frame II to vibrate on the support frame I, and the support frame II drives the filter plate to vibrate, so that the possibility of dust particles blocking the filter plate and affecting the normal passage of air through the filter plate can be reduced.

[0011] Further, the oscillation assembly comprises a support shaft rotatingly connected to the support frame I, two symmetrical vibration heads are fixed on the support shaft, the vibration heads are elliptical, a driving motor is fixed on the support frame I, and the output end of the driving motor penetrates the support frame I and is fixedly connected with the support shaft.

[0012] By adopting the above technical scheme, the support shaft drives the vibration heads, and the short diameter end and the long diameter end of the vibration heads alternately resist the support frame II, so that the support frame II can be conveniently vibrated on the support frame I.

[0013] Further, four resisting springs which are symmetrical in pairs are arranged between the support frame I and the support frame II, and the two ends of the resisting springs are fixedly connected with the support frame I and the support frame II.

[0014] By adopting the above technical scheme, the support frame II is supported by the resisting springs, so that the support frame II can be kept in contact with the vibration heads.

[0015] Further, four limiting columns which are in pairs are fixed on the support frame I, the limiting columns are located in the resisting springs, the limiting columns penetrate the support frame II and are slidingly connected with the support frame II.

[0016] By adopting the above technical scheme, the limiting columns fixed on the support frame I enable the support frame II to slide on the limiting columns, so that the stability of vibration of the support frame II can be further improved.

[0017] Further, the resisting assembly comprises a support frame arranged on the filter plate, a plurality of resisting rods are fixed on the support frame, the resisting rods correspond to the filter holes on the filter plate, two symmetrical connecting blocks are fixed on the support frame, and the connecting blocks are fixedly connected with the support frame I.

[0018] By adopting the above technical scheme, the resisting rods on the support frame dredge the filter holes on the filter plate, so that the possibility of dust particles blocking the filter plate can be further reduced.

[0019] Further, the dehumidification mechanism comprises a dehumidification net one fixed in the ventilation pipe, one side of the dehumidification net one is provided with a dehumidification net two, the dehumidification net two is fixedly connected with the ventilation pipe, and the dehumidification net one and the dehumidification net two are filled with dehumidification particles.

[0020] By adopting the above technical scheme, air passes through the dehumidification net one and the dehumidification net two, and the air contacts the dehumidification particles in the dehumidification net one and the dehumidification net two, so that the moisture in the air entering the building can be reduced.

[0021] Further, the ventilation pipe is rotationally connected with a support rod, the support rod is fixed with a baffle, the ventilation pipe is fixed with an on-off motor, and the output end of the on-off motor penetrates the ventilation pipe and is fixedly connected with the support rod.

[0022] By adopting the above technical scheme, the on-off motor drives the support rod, and the support rod drives the baffle, so that the ventilation pipe can be conveniently blocked, and the random circulation of external air and indoor air is reduced.

[0023] In summary, the present application has at least one of the following beneficial effects:

[0024] 1. In the present application, when external air enters the building from the ventilation pipe, dust particles on the filter plate are blocked by the filter plate. When the dust particles on the filter plate accumulate, the driving motor drives the support shaft, and the support shaft drives the vibration head. The short diameter end and the long diameter end of the vibration head alternately abut against the support frame two, so that the support frame two moves back and forth on the support frame one. Then, under the pushing of the abutting spring, the support frame two keeps abutting against the vibration head. The support frame two drives the filter plate to vibrate back and forth, so that the dust particles on the filter plate are shaken off. When the support frame two moves, the limiting column limits the support frame two, so that the support frame two keeps moving stably. The abutting rod on the support frame dredges the filter holes on the filter plate, so that the purpose of reducing the possibility of dust particles blocking the filter plate and affecting the normal passage of air through the filter plate is achieved.

[0025] 2. In the present application, when the ventilation fan starts to work, the on-off motor drives the support rod, the support rod drives the baffle, the baffle is opened from the ventilation pipe, air passes through the ventilation pipe, air passes through the dehumidification net one and the dehumidification net two, air contacts the dehumidification particles in the dehumidification net one and the dehumidification net two, the dehumidification particles are silica gel desiccant, the moisture in the air is absorbed by the dehumidification particles, and then the air enters the building, so that the purpose of reducing the moisture in the air entering the building is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is the first three-dimensional structure schematic diagram of the ventilation device in the present application.

[0027] Figure 2is the first internal structure schematic diagram of the ventilation device in the application;

[0028] Figure 3 is the second internal structure schematic diagram of the ventilation device in the application;

[0029] Figure 4 is the first internal structure schematic diagram of the ventilation device in the application Figure 3 is the first internal structure schematic diagram of the ventilation device in the application

[0030] Explanation of reference signs:

[0031] 1, ventilation pipe; 2, support plate; 3, ventilation fan; 4, sealing plate; 5, differential pressure sensor; 6, filter plate; 7, cleaning mechanism; 71, support frame one; 72, support frame two; 73, oscillation assembly; 731, support shaft; 732, vibration head; 733, drive motor; 734, contact spring; 735, limiting column; 74, contact assembly; 741, support frame; 742, contact rod; 743, connecting block; 8, dehumidification mechanism; 81, dehumidification net one; 82, dehumidification net two; 83, dehumidification particles; 84, support rod; 85, baffle; 86, switch motor. DETAILED DESCRIPTION

[0032] The application will be further described in detail below in combination with the accompanying drawings. Figure 1 —4.

[0033] The embodiment of the application discloses a building ventilation device with differential pressure regulation function.

[0034] With reference to Figure 1 , Figure 2 and Figure 3 , a building ventilation device with differential pressure regulation function, comprising a ventilation pipe 1, a support plate 2 is fixed in the ventilation pipe 1, a ventilation fan 3 is fixed on the support plate 2, two symmetrical sealing plates 4 are fixed on the ventilation pipe 1, a differential pressure sensor 5 is fixed on each of the two sealing plates 4, a filter plate 6 is arranged at one end of the ventilation pipe 1, a cleaning mechanism 7 is arranged between the filter plate 6 and the ventilation pipe 1, and a dehumidification mechanism 8 is arranged on the ventilation pipe 1.

[0035] In use, the building ventilation device is used, the ventilation hole is opened on the building, then the ventilation pipe 1 is fixed on the building, the two sealing plates 4 on the ventilation pipe 1 are located outside and inside the building respectively, the sealing plates 4 block the gap of the building, the differential pressure sensor 5 on the sealing plate 4 detects the pressure difference between the inside and outside of the building, when the pressure difference between the inside and outside of the building is detected by the differential pressure sensor 5, the ventilation fan 3 rotates in the ventilation pipe 1, the ventilation fan 3 draws the outside air into the building, adjusts the pressure difference in the building, when the outside air enters the ventilation pipe 1, the filter plate 6 filters the dust in the air, after the filter plate 6 is used for a long time, the cleaning mechanism 7 cleans the filter plate 6, so that the dust particles attached to the filter plate 6 fall off, when the outside air enters the building from the ventilation pipe 1, the air passes through the dehumidification mechanism 8, the dehumidification mechanism 8 dries the air, then the air enters the building, by using the cleaning mechanism 7 to clean the filter plate 6, the possibility of dust particles blocking the filter plate 6 and affecting the normal passage of air through the filter plate 6 can be reduced.

[0036] With reference to Figure 2 , Figure 3 and Figure 4 , the cleaning mechanism 7 comprises a support frame one 71 fixed on the ventilation pipe 1, a support frame two 72 provided on the support frame one 71, the support frame two 72 is fixedly connected with the filter plate 6, the support frame one 71 is slidably connected with the support frame two 72, an oscillation assembly 73 is arranged between the support frame one 71 and the support frame two 72, and a resisting assembly 74 is arranged between the support frame one 71 and the filter plate 6.

[0037] In addition, the oscillation assembly 73 comprises a support shaft 731 rotatably connected to the support frame one 71, two symmetrical vibration heads 732 are fixed on the support shaft 731, the vibration head 732 is elliptical, a drive motor 733 is fixed on the support frame one 71, and the output end of the drive motor 733 penetrates the support frame one 71 and is fixedly connected with the support shaft 731.

[0038] Furthermore, four resisting springs 734 which are symmetrical in pairs are arranged between the support frame one 71 and the support frame two 72, and the two ends of the resisting spring 734 are fixedly connected with the support frame one 71 and the support frame two 72.

[0039] In addition, four limiting columns 735 which are in pairs are fixed on the support frame one 71, the limiting column 735 is located in the resisting spring 734, the limiting column 735 penetrates the support frame two 72 and is slidably connected with the support frame two 72.

[0040] And, the resisting assembly 74 comprises a support frame 741 arranged on the filter plate 6, a plurality of resisting rods 742 are fixed on the support frame 741, the resisting rods 742 correspond to the filter holes on the filter plate 6, two symmetrical connecting blocks 743 are fixed on the support frame 741 and are fixedly connected with the support frame 71.

[0041] When the external air enters into the building from the ventilation pipe 1, the dust particles on the filter plate 6 are blocked by the filter plate 6, when the dust particles on the filter plate 6 are accumulated, the support shaft 731 is driven by the driving motor 733, the vibration head 732 is driven by the support shaft 731, the short diameter end and the long diameter end of the vibration head 732 are used to alternately resist the support frame two 72, the support frame two 72 is repeatedly moved on the support frame one 71, then the support frame two 72 is kept resisting the vibration head 732 under the pushing of the resisting spring 734, the support frame two 72 drives the filter plate 6 to vibrate back and forth, the dust particles on the filter plate 6 are vibrated to fall, when the support frame two 72 moves, the support frame two 72 is limited by the limiting column 735, so that the support frame two 72 keeps moving stably, the resisting rods 742 on the support frame 741 dredge the filter holes on the filter plate 6, the filter plate 6 is driven by the vibration head 732 to vibrate, the filter plate 6 vibrates to fall the dust particles, and the resisting rods 742 dredge the filter holes on the filter plate 6, so that the possibility of the dust particles blocking the filter plate 6 and affecting the normal air passing through the filter plate 6 can be reduced.

[0042] With reference to Figure 1 And Figure 2 The dehumidification mechanism 8 comprises a dehumidification net one 81 fixed in the ventilation pipe 1, the dehumidification net one 81 is provided with a dehumidification net two 82, the dehumidification net two 82 is fixedly connected with the ventilation pipe 1, and the dehumidification particles 83 are filled between the dehumidification net one 81 and the dehumidification net two 82.

[0043] In addition, the support rod 84 is rotationally connected on the ventilation pipe 1, the baffle 85 is fixed on the support rod 84, the switch motor 86 is fixed on the ventilation pipe 1, the output end of the switch motor 86 penetrates through the ventilation pipe 1 and is fixedly connected with the support rod 84.

[0044] When the ventilation fan 3 starts to work, the switch motor 86 drives the support rod 84, the support rod 84 drives the baffle 85, the baffle 85 is opened from the ventilation pipe 1, the air passes through the ventilation pipe 1, the air passes through the dehumidification net one 81 and the dehumidification net two 82, the air contacts the dehumidification particles 83 in the dehumidification net one 81 and the dehumidification net two 82, the dehumidification particles 83 are silica gel desiccant, the water vapor in the air is absorbed by the dehumidification particles 83, then the air enters into the building, the air contacts the dehumidification particles 83 before entering into the building, so that the moisture in the air entering into the building can be reduced.

[0045] Working principle: when using the building ventilation device, open the ventilation hole on the building, then fix the ventilation pipe 1 on the building, two sealing plates 4 on the ventilation pipe 1 are located outside and inside the building respectively, the sealing plate 4 blocks the gap of the building, the differential pressure sensor 5 on the sealing plate 4 detects the pressure difference inside and outside the building, when the pressure difference inside and outside the building appears, the ventilation fan 3 rotates in the ventilation pipe 1, the ventilation fan 3 draws outside air into the building, adjusts the pressure difference inside the building, when the outside air enters the ventilation pipe 1, the filter plate 6 filters the dust in the air, the dust particles on the filter plate 6 are blocked by the filter plate 6, when the dust particles on the filter plate 6 accumulate, the support shaft 731 is driven by the driving motor 733, the vibration head 732 is driven by the support shaft 731, the short diameter end and the long diameter end of the vibration head 732 alternately touch the support frame two 72, the support frame two 72 moves repeatedly on the support frame one 71, then the support frame two 72 keeps touching the vibration head 732 under the pushing of the touching spring 734, the support frame two 72 drives the filter plate 6 to vibrate back and forth, so that the dust particles on the filter plate 6 fall off, when the support frame two 72 moves, the limiting column 735 limits the support frame two 72, so that the support frame two 72 keeps moving stably, the touching rod 742 on the support frame 741 dredges the filter hole on the filter plate 6, when the ventilation fan 3 starts to work, the switch motor 86 drives the support rod 84, the support rod 84 drives the baffle 85, the baffle 85 opens from the ventilation pipe 1, so that the air passes through the ventilation pipe 1, the air passes through the dehumidification net one 81 and the dehumidification net two 82, the air contacts the dehumidification particles 83 in the dehumidification net one 81 and the dehumidification net two 82, the dehumidification particles 83 are silica gel desiccant, the moisture in the air is absorbed by the dehumidification particles 83, then the air enters the building.

Claims

1. A building ventilation device with pressure difference regulation function, comprising a ventilation pipe (1), characterized in that: The support plate (2) is fixed in the ventilation pipe (1), the ventilation fan (3) is fixed on the support plate (2), two symmetrical sealing plates (4) are fixed on the ventilation pipe (1), the differential pressure sensor (5) is fixed on the two sealing plates (4), the filter plate (6) is arranged at one end of the ventilation pipe (1), the cleaning mechanism (7) is arranged between the filter plate (6) and the ventilation pipe (1), and the dehumidification mechanism (8) is arranged on the ventilation pipe (1).

2. The building ventilation device with differential pressure regulation function according to claim 1, characterized in that: The cleaning mechanism (7) comprises a support frame one (71) fixed on the ventilation pipe (1), a support frame two (72) is arranged on the support frame one (71), the support frame two (72) is fixedly connected with the filter plate (6), the support frame one (71) is slidably connected with the support frame two (72), and the oscillation assembly (73) is arranged between the support frame one (71) and the support frame two (72).

3. The building ventilation device with differential pressure regulation function according to claim 2, characterized in that: The oscillation assembly (73) comprises a support shaft (731) rotatably connected to the support frame one (71), two symmetrical vibration heads (732) are fixed on the support shaft (731), the vibration head (732) is oval, the drive motor (733) is fixed on the support frame one (71), and the output end of the drive motor (733) penetrates the support frame one (71) and is fixedly connected with the support shaft (731).

4. The building ventilation device with differential pressure regulation function according to claim 3, characterized in that: The support frame one (71) and the support frame two (72) are provided with four two-two symmetrical abutting springs (734), and the two ends of the abutting spring (734) are fixedly connected with the support frame one (71) and the support frame two (72).

5. The building ventilation device with differential pressure regulation function according to claim 4, characterized in that: The support frame one (71) is fixed with four two-two limiting columns (735), the limiting column (735) is located in the abutting spring (734), the limiting column (735) penetrates the support frame two (72) and is slidably connected with the support frame two (72).

6. The building ventilation device with differential pressure regulation function according to claim 2, characterized in that: The abutting assembly (74) comprises a support frame (741) arranged on the filter plate (6), a plurality of abutting rods (742) are fixed on the support frame (741), the abutting rod (742) corresponds to the filter hole on the filter plate (6), two symmetrical connecting blocks (743) are fixed on the support frame (741), and the connecting block (743) is fixedly connected with the support frame one (71).

7. The building ventilation device with differential pressure regulation function according to claim 1, characterized in that: The dehumidification mechanism (8) comprises a dehumidification net one (81) fixed in the ventilation pipe (1), a dehumidification net two (82) is arranged on one side of the dehumidification net one (81), the dehumidification net two (82) is fixedly connected with the ventilation pipe (1), and the dehumidification particles (83) are filled between the dehumidification net one (81) and the dehumidification net two (82).

8. The building ventilation device with differential pressure regulation function according to claim 7, characterized in that: The support rod (84) is rotatably connected to the ventilation pipe (1), the baffle (85) is fixed on the support rod (84), the on-off motor (86) is fixed on the ventilation pipe (1), the output end of the on-off motor (86) penetrates the ventilation pipe (1) and is fixedly connected with the support rod (84).

Images