Drainage device for energy-saving heating ventilation air conditioner

Abstract

The invention relates to the technical field of heating ventilation air conditioner drainage, and particularly discloses an energy-saving heating ventilation air conditioner drainage device which comprises a device body and a drainage pipe, the top end of the device body is connected with the drainage pipe of a heating ventilation air conditioner, two water outlet pipes are installed at the bottom end of the device body, and a filter plate is installed in the device body; a first cleaning mechanism for cleaning impurities in the filter tank is mounted at the bottom of the filter plate, a second cleaning mechanism for cleaning the impurities is mounted at the top of the filter plate, and a collecting tank for temporarily storing the cleaned impurities is mounted on the outer wall of the device body. According to the invention, when the filter plate needs to be cleaned, through mutual cooperation of the first cleaning mechanism and the second cleaning mechanism, impurities at the top of the filter plate and in the filter tank can be cleaned and removed, the cleaning effect on the filter plate is improved, and the filter plate is ensured not to be affected by impurity blockage during use.

Description

Technical Field

[0001] The invention relates to the technical field of HVAC drainage, and in particular to an energy-saving HVAC drainage device. Background Art

[0002] HVAC refers to the system or related equipment responsible for heating, ventilation and air conditioning in the room or car. It includes three aspects: heating, ventilation and air conditioning. The main functions of HVAC include: Heating: supplying heat to the room by artificial means to maintain the indoor temperature. Ventilation: the process of sending and removing air into and out of the space by natural or mechanical means. Air conditioning: in order to meet the requirements of production and life and improve labor and health conditions, the air temperature, relative humidity, cleanliness and air flow velocity of the room or confined space are artificially made to meet certain requirements. HVAC systems are widely used in medium and large industrial buildings and office buildings, such as skyscrapers. It plays an important role in the fields and industries of pharmaceuticals, electronics, mission-critical facilities, and oil and gas. It can improve indoor comfort and is an important part of medium and large industrial buildings or office buildings. The HVAC will have a drainage device inside to discharge condensed water.

[0003] When the drainage device in the prior art is used, a filter screen is usually set inside to filter the impurities in the condensed water. However, after the filter screen in the drainage device in the prior art filters the condensed water, the impurities will adhere to the surface of the filter screen, causing the filter screen to reduce the filtering efficiency of the condensed water; although some prior arts are provided with related mechanisms to remove impurities on the top of the filter screen, these mechanisms remove impurities on the top of the filter screen, while the impurities in the filter holes or filter slots inside the filter screen cannot be cleaned, so that the subsequent filter screen cannot improve the filtering efficiency of the condensed water. Therefore, an energy-saving HVAC drainage device is proposed. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to provide an energy-saving HVAC drainage device.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A drainage device for an energy-saving HVAC comprises a device body and a drainage pipe, wherein the top end of the device body is connected to the drainage pipe of the HVAC, and two water outlet pipes are installed at the bottom end of the device body. A filter plate for filtering condensed water is installed inside the device body, a first cleaning mechanism for cleaning impurities inside the filter tank is installed at the bottom of the filter plate, a second cleaning mechanism for cleaning impurities is installed on the top of the filter plate, and a collection tank for temporarily storing cleaned impurities is installed on the outer wall of the device body.

[0007] Optionally, the first cleaning mechanism includes a shell installed at the bottom of the device body, a first drive motor is installed inside the shell, the output end of the first drive motor extends to the inside of the device body where a drive screw is installed, and a circular plate matching the drive screw is installed on the outer wall of the drive screw.

[0008] Optionally, a fixing plate is installed on the inner wall of the device body, a plurality of guide rods are installed on the top of the fixing plate, the plurality of guide rods are all slidably connected to the circular plate, and a plurality of push blocks adapted to the filter tank are installed on the top of the circular plate.

[0009] Optionally, the second cleaning mechanism includes a second drive motor installed inside the drive screw, the output end of the second drive motor is equipped with a first electric telescopic rod, the outer wall of the first electric telescopic rod is equipped with a drive rod, and the outer wall of the drive rod is equipped with multiple rotating plates adapted to the top of the filter plate.

[0010] Optionally, grooves are formed inside the plurality of rotating plates, two second electric telescopic rods are installed inside the plurality of grooves, and a cleaning brush is commonly installed at the telescopic ends of the two second electric telescopic rods.

[0011] Optionally, a round block is installed at the telescopic end of the first electric telescopic rod, a round groove is provided on the outer wall of the round block, and an annular airbag is installed inside the round groove.

[0012] Optionally, two belts are rotatably installed on the outer wall of the output end of the first driving motor, two fixed rods are installed inside the device body, and the ends of the two fixed rods that are close to each other are rotatably installed with rotating shafts. The tops of the two rotating shafts are installed with driving wheels, and the two belts are rotatably cooperated with the driving wheels close to them.

[0013] Optionally, the bottom ends of the two rotating shafts extend to the inside of the corresponding water outlet pipes, and spiral blades are installed on the outer walls of the two rotating shafts located inside the water outlet pipes.

[0014] Optionally, the device body is provided with multiple discharge outlets on the outer wall near the collection tank, multiple fixed seats are installed at the top of the device body, third electric telescopic rods are installed at the bottom ends of the multiple fixed seats, and the telescopic ends of the multiple third electric telescopic rods are jointly installed with sealing plates for sealing the multiple discharge outlets.

[0015] Optionally, a cover plate for sealing the top opening of the collecting tank is installed at the bottom end of the blocking plate, and a filter screen is installed at the bottom of the collecting tank.

[0016] The beneficial effects of the present invention are:

[0017] 1. In the present invention, when the filter plate needs to be cleaned, the first cleaning mechanism and the second cleaning mechanism cooperate with each other to clean and remove impurities on the top of the filter plate and inside the filter tank, thereby improving the cleaning effect of the filter plate and ensuring that the filter plate is not affected by clogging by impurities when in use.

[0018] 2. In the present invention, after the impurities on the top of the filter plate are cleaned with the help of multiple rotating plates and cleaning brushes, the driving screw is controlled to drive the circular plate and multiple push blocks to move upward together, and the multiple push blocks are driven to enter the corresponding filter grooves, which has a blocking effect on the filter plate. At this time, the condensed water discharged from the drain pipe downward to the inside of the device body can fall on the top of the filter plate, and the cleaned impurities can be flushed to a position close to the multiple discharge ports in conjunction with the rotation of the multiple rotating plates. The multiple third electric telescopic rods are controlled to drive the blocking plates to move upward synchronously, and the multiple discharge ports are no longer blocked. At this time, the impurities located at the multiple discharge ports can enter the interior of the collection groove along with the subsequent automatic flushing of the condensed water, thereby achieving the effect of automatically removing the impurities. There is no need to manually disassemble the device body and manually clean and collect it, which is convenient for the use of the device body.

[0019] 3. In the present invention, after the impurities enter the collecting tank and are temporarily stored, the excess water in the impurities can be filtered out through the filter net, and the telescopic ends of the plurality of third electric telescopic rods can be controlled to extend downward together, thereby driving the cover plate at the bottom of the sealing plate to squeeze the impurities inside the collecting tank, thereby accelerating the discharge of excess water inside the impurities and facilitating subsequent staff to clean up the impurities inside the collecting tank; and when the sealing plate is in its original state to seal the plurality of discharge ports, the cover plate is located at the top opening position of the collecting tank, and can seal the top opening position of the collecting tank, thereby preventing the impurities from being directly exposed to the working environment, and preventing other external debris from easily entering the interior of the collecting tank and coming into contact with the moist impurities to breed a large number of bacteria.

[0020] 4. In the present invention, since condensed water is discharged from the drain pipe for a long time, impurities will be attached to the inner wall of the drain pipe. The telescopic end of the first electric telescopic rod can be periodically controlled to extend upward to drive the round block into the drain pipe until the first electric telescopic rod is extended to the maximum length. Then, the annular airbag is controlled to inflate so that the outer wall of the annular airbag is in close contact with the inner wall of the drain pipe. As the telescopic end of the first electric telescopic rod contracts downward, and the second drive motor drives the first electric telescopic rod to rotate synchronously, the annular airbag can clean the impurities attached to the inner wall of the drain pipe during the rotation and downward movement, thereby reducing the probability of impurities clogging the inside of the drain pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the overall structure of an energy-saving HVAC drainage device proposed by the present invention;

[0023] Figure 2 It is a schematic diagram of the structure inside the device body of the present invention;

[0024] Figure 3 It is a structural cross-sectional view of the device body in the present invention;

[0025] Figure 4 It is a structural schematic diagram of the blocking plate in the present invention;

[0026] Figure 5 It is a schematic diagram of the structure of the filter plate and the circular plate in the present invention;

[0027] Figure 6 It is a schematic diagram of the structure in which the second driving motor is separated from the driving screw rod in the present invention;

[0028] Figure 7 It is a structural schematic diagram of the bottom of the circular plate in the present invention;

[0029] Figure 8 It is a structural cross-sectional view of the rotating plate in the present invention;

[0030] Fig. 9 It is a schematic structural diagram of the third electric telescopic rod and the annular airbag in the present invention.

[0031] In the figure: 1. device body; 2. drain pipe; 3. outlet pipe; 4. shell; 5. collecting tank; 6. blocking plate; 7. fixing seat; 8. third electric telescopic rod; 9. filter plate; 10. circular plate; 11. first drive motor; 12. drive rod; 13. rotating plate; 14. discharge port; 15. fixing plate; 16. guide rod; 17. fixing rod; 18. filter screen; 19. push block; 20. rotating shaft; 21. spiral blade; 22. driving screw; 23. second drive motor; 24. first electric telescopic rod; 25. belt; 26. driving wheel; 27. groove; 28. second electric telescopic rod; 29. ​​round block; 30. circular groove; 31. annular airbag; 32. cleaning brush. DETAILED DESCRIPTION

[0032] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Reference Figure 1-Figure 9A drainage device for energy-saving HVAC includes a device body 1 and a drainage pipe 2. The top of the device body 1 is connected to the drainage pipe 2 of the HVAC, and two water outlet pipes 3 are installed at the bottom of the device body 1. A filter plate 9 for filtering condensed water is installed inside the device body 1. A first cleaning mechanism for cleaning impurities inside the filter tank is installed at the bottom of the filter plate 9, and a second cleaning mechanism for cleaning impurities is installed on the top of the filter plate 9. A collection tank 5 for temporarily storing cleaned impurities is installed on the outer wall of the device body 1.

[0034] As a technical optimization solution of the present invention, the first cleaning mechanism includes a shell 4 installed at the bottom of the device body 1, a first drive motor 11 is installed inside the shell 4, the output end of the first drive motor 11 extends to the inside of the device body 1 and a drive screw 22 is installed, and a circular plate 10 adapted thereto is installed on the outer wall of the drive screw 22. After the first drive motor 11 is started, it can drive the drive screw 22 to rotate synchronously, thereby driving the circular plate 10 to move up and down inside the device body 1.

[0035] As a technical optimization solution of the present invention, a fixing plate 15 is installed on the inner wall of the device body 1, and a plurality of guide rods 16 are installed on the top of the fixing plate 15. The plurality of guide rods 16 are all slidably connected with the circular plate 10, and a plurality of push blocks 19 adapted to the filter tanks are installed on the top of the circular plate 10. The moving track of the circular plate 10 is limited by means of the plurality of guide rods 16, so that the circular plate 10 can move up and down inside the device body 1, and drive the plurality of push blocks 19 to enter the interior of the plurality of corresponding filter tanks upward, and push upward to remove the impurities stuck inside the filter tanks.

[0036] As a technical optimization solution of the present invention, the second cleaning mechanism includes a second drive motor 23 installed inside the drive screw 22, a first electric telescopic rod 24 is installed at the output end of the second drive motor 23, a drive rod 12 is installed on the outer wall of the first electric telescopic rod 24, and a plurality of rotating plates 13 adapted to the top of the filter plate 9 are installed on the outer wall of the drive rod 12. The second drive motor 23 can drive the first electric telescopic rod 24 and the drive rod 12 to rotate synchronously, and drive the plurality of rotating plates 13 to rotate and scrape the impurities accumulated on the top of the filter plate 9.

[0037] As a technical optimization solution of the present invention, a groove 27 is provided inside each of the plurality of rotating plates 13, and two second electric telescopic rods 28 are installed inside each of the plurality of grooves 27, and a cleaning brush 32 is installed at the telescopic ends of the two second electric telescopic rods 28. After the telescopic ends of the two second electric telescopic rods 28 extend downward together, the cleaning brush 32 is driven to abut against the top of the filter plate 9, and as the rotating plate 13 rotates, the plurality of cleaning brushes 32 can be driven to clean the top of the filter plate 9.

[0038] As a technical optimization solution of the present invention, a round block 29 is installed at the telescopic end of the first electric telescopic rod 24, a round groove 30 is opened on the outer wall of the round block 29, and an annular airbag 31 is installed inside the circular groove 30. The annular airbag 31 can be inflated with the help of a preset inflation mechanism. The telescopic end of the first electric telescopic rod 24 extends upward, which can drive the round block 29 and the annular airbag 31 into the interior of the drain pipe 2 and control the inflation of the annular airbag 31. As the telescopic end of the first electric telescopic rod 24 contracts downward, the wear-resistant layer set on the outermost layer of the annular airbag 31 is driven to rub against the inner wall of the drain pipe 2, and the impurities attached to the inner wall of the drain pipe 2 are cleaned and removed.

[0039] As a technical optimization solution of the present invention, two belts 25 are rotatably installed on the outer wall of the output end of the first drive motor 11, and two fixed rods 17 are installed inside the device body 1. The ends of the two fixed rods 17 that are close to each other are rotatably installed with a rotating shaft 20, and the tops of the two rotating shafts 20 are installed with driving wheels 26, and the two belts 25 are rotatably matched with the driving wheels 26 that are close to each other. In actual use, a shell for protecting the two belts 25 is provided on the surface of the two belts 25 to ensure that the normal use of the belts 25 is not affected; while the output end of the first drive motor 11 rotates, the two driving wheels 26 and the rotating shaft 20 can be driven by the two belts 25 to rotate synchronously inside the device body 1.

[0040] As a technical optimization solution of the present invention, the bottom ends of the two rotating shafts 20 extend to the inside of the corresponding water outlet pipes 3, and the outer walls of the two rotating shafts 20 located inside the water outlet pipes 3 are both installed with spiral blades 21. When the two rotating shafts 20 rotate, they can drive the two spiral blades 21 to rotate inside the corresponding water outlet pipes 3, and assist in conveying the condensed water entering the two water outlet pipes 3 downward, thereby improving the discharge efficiency of the condensed water.

[0041] As a technical optimization solution of the present invention, a plurality of discharge ports 14 are provided on the outer wall of the device body 1 near the collection tank 5, a plurality of fixing seats 7 are installed on the top of the device body 1, a third electric telescopic rod 8 is installed on the bottom of the plurality of fixing seats 7, and a blocking plate 6 for blocking the plurality of discharge ports 14 is installed on the telescopic ends of the plurality of third electric telescopic rods 8. As the plurality of rotating plates 13 rotate, the impurities on the top of the filter plate 9 are scraped and cleaned, and the cleaned impurities slide along the top of the filter plate 9 toward the inner wall near the device body 1, and are discharged from the plurality of discharge ports 14 to the inside of the collection tank 5 for collection; the provided blocking plate 6 can block the plurality of discharge ports 14 when the impurities are not discharged from the inside of the device body 1 to the outside, so as to prevent the condensed water from being discharged from the discharge ports 14 together.

[0042] As a technical optimization solution of the present invention, a cover plate for sealing the top opening of the collection tank 5 is installed at the bottom of the blocking plate 6, and a filter screen 18 is installed at the bottom of the collection tank 5. Impurities entering the collection tank 5 can be filtered and removed by the filter screen 18 to remove the water contained therein, which is convenient for subsequent staff to clean up the impurities.

[0043] In the present invention, when the user uses the device, the device body 1 is connected to the drain pipe 2 of the HVAC, so that the condensed water discharged from the drain pipe 2 can enter the interior of the device body 1, and after being filtered by the filter plate 9, the condensed water falls into the inner bottom surface of the device body 1 and is discharged downward through the two outlet pipes 3.

[0044] After the device body 1 has been used for a period of time, a large amount of impurities remain on the top of the filter plate 9. In order to prevent these impurities from affecting the filtering effect of the filter plate 9, the second drive motor 23 can be controlled to drive the first electric telescopic rod 24 and the drive rod 12 to rotate together, thereby driving the multiple rotating plates 13 to rotate synchronously on the top of the filter plate 9, so that the multiple rotating plates 13 can automatically scrape off the impurities accumulated on the top of the filter plate 9 during the rotation process. The scraped impurities will be dispersed toward the edge position along the top of the filter plate 9, reducing the adverse effects of a large amount of impurities accumulated on the filter plate 9, and improving the filtering efficiency of the filter plate 9 for condensed water.

[0045] When scraping the top of the filter plate 9 through multiple rotating plates 13, the first drive motor 11 can be synchronously controlled to drive the drive screw 22 to rotate forward and reverse continuously, thereby driving the circular plate 10 and the multiple push blocks 19 to continuously move upward and reset downward inside the device body 1, so that after the multiple push blocks 19 move upward to the inside of the filter tank, the impurities inside the filter tank that cannot be scraped off can be pushed upward, and the impurities pushed upward can be scraped and cleaned together with the rotation of the multiple rotating plates 13, thereby improving the cleaning effect of the filter plate 9 and ensuring that the filter plate 9 is not affected by impurity blockage when in use.

[0046] At the same time, while the first drive motor 11 drives the drive screw 22 to rotate, it can drive the two belts 25 to rotate synchronously, so that the two drive wheels 26 can drive the corresponding rotating shaft 20 and spiral blades 21 to rotate, so as to facilitate the rapid discharge of condensed water entering the water outlet pipe 3; and the two spiral blades 21 are respectively arranged inside the two water outlet pipes 3, which can also prevent small animals such as mice from entering the interior of the device body 1 through the two water outlet pipes 3, thereby preventing the normal operation of the device body 1 from occurring.

[0047] While the multiple rotating plates 13 are cleaning the top of the filter plate 9, the telescopic ends of the two second electric telescopic rods 28 inside the multiple grooves 27 can be controlled to extend downward together, driving the cleaning brush 32 to extend downward to a position abutting against the top of the filter plate 9. As the multiple rotating plates 13 continue to rotate, the multiple cleaning brushes 32 can be driven to brush and clean the impurities on the top of the filter plate 9 that are difficult to scrape off, thereby further improving the cleaning effect on the top of the filter plate 9.

[0048] After cleaning the impurities on the top of the filter plate 9 with the help of multiple rotating plates 13 and cleaning brushes 32, the driving screw 22 can be controlled to drive the circular plate 10 and multiple push blocks 19 to move upward together, and drive the multiple push blocks 19 to enter the corresponding filter grooves, which has a blocking effect on the filter plate 9. At this time, the condensed water discharged downward from the drain pipe 2 to the inside of the device body 1 can fall on the top of the filter plate 9, and the cleaned impurities can be flushed to a position close to the multiple discharge ports 14 in conjunction with the rotation of the multiple rotating plates 13. The telescopic ends of the multiple third electric telescopic rods 8 are controlled to retract upward together, driving the blocking plate 6 to move upward synchronously, and the multiple discharge ports 14 are no longer blocked. At this time, the impurities located at the positions of the multiple discharge ports 14 can enter the interior of the collecting tank 5 with the subsequent automatic flushing of the condensed water, thereby achieving the effect of automatically removing impurities. There is no need to manually disassemble the device body 1 and manually clean and collect it, which is convenient for the use of the device body 1.

[0049] After the impurities enter the collecting tank 5 for temporary storage, the excess moisture in the impurities can be filtered out through the filter 18. The telescopic ends of the plurality of third electric telescopic rods 8 can be controlled to extend downward together, thereby driving the cover plate at the bottom of the blocking plate 6 to squeeze the impurities inside the collecting tank 5, thereby accelerating the discharge of excess moisture inside the impurities and facilitating subsequent staff to clean up the impurities inside the collecting tank 5. When the blocking plate 6 is in its original state to block the plurality of discharge ports 14, the cover plate is located at the top opening position of the collecting tank 5, and can block the top opening position of the collecting tank 5 to prevent the impurities from being directly exposed to the working environment. Other external debris can easily enter the interior of the collecting tank 5 and come into contact with the moist impurities to breed more bacteria.

[0050] Since condensed water is discharged from the drain pipe 2 for a long time, impurities will also be attached to the inner wall of the drain pipe 2. In order to prevent these impurities from accumulating in large quantities inside the drain pipe 2 and causing blockage inside the drain pipe 2, the telescopic end of the first electric telescopic rod 24 can be regularly controlled to extend upward to drive the round block 29 to enter the interior of the drain pipe 2 until the first electric telescopic rod 24 is extended to the maximum length, and the annular airbag 31 is controlled to inflate so that the outer wall of the annular airbag 31 is in close contact with the inner wall of the drain pipe 2. As the telescopic end of the first electric telescopic rod 24 contracts downward, and the second drive motor 23 drives the first electric telescopic rod 24 to rotate synchronously, the annular airbag 31 can clean the impurities attached to the inner wall of the drain pipe 2 during the rotation and downward movement, thereby reducing the probability of impurities clogging the inside of the drain pipe 2.

[0051] At the same time, the telescopic end of the first electric telescopic rod 24 can be periodically controlled to extend slightly upward, driving the round block 29 to move only to a position flush with the bottom end of the drain pipe 2. At this time, the annular airbag 31 is controlled to inflate to seal the bottom end of the drain pipe 2. The subsequent condensed water discharged downward from the drain pipe 2 will first accumulate inside the drain pipe 2 for a period of time, which can test whether the sealing between the drain pipe 2 and the device body 1 is good, so that subsequent staff can inspect and repair the connection between the drain pipe 2 and the device body 1.

[0052] Moreover, when the drain pipe 2 discharges the condensed water into the interior of the device body 1, the annular airbag 31 in its original state can be controlled to inflate and expand, and the condensed water subsequently discharged downward from the interior of the drain pipe 2 can preferentially fall on the top of the expanded annular airbag 31, and disperse the condensed water to the four sides of the filter plate 9, thereby expanding the contact area between the condensed water and the filter plate 9, and indirectly improving the efficiency of the filter plate 9 in filtering impurities mixed in the condensed water.

[0053] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An energy-saving HVAC drainage device, comprising a device body (1) and a drainage pipe (2), characterized in that: The top end of the device body (1) is connected to the drainage pipe (2) of the HVAC, and two water outlet pipes (3) are installed at the bottom end of the device body (1). A filter plate (9) for filtering condensed water is installed inside the device body (1), a first cleaning mechanism for cleaning impurities inside the filter tank is installed at the bottom of the filter plate (9), a second cleaning mechanism for cleaning impurities is installed at the top of the filter plate (9), and a collection tank (5) for temporarily storing cleaned impurities is installed on the outer wall of the device body (1).

2. The energy-saving HVAC drainage device according to claim 1, characterized in that: The first cleaning mechanism comprises a shell (4) mounted at the bottom of the device body (1), a first drive motor (11) being mounted inside the shell (4), an output end of the first drive motor (11) extending to the inside of the device body (1) where a drive screw (22) is mounted, and an outer wall of the drive screw (22) is mounted with a circular plate (10) matching the drive screw (22).

3. The energy-saving HVAC drainage device according to claim 2, characterized in that: A fixing plate (15) is installed on the inner wall of the device body (1), a plurality of guide rods (16) are installed on the top of the fixing plate (15), the plurality of guide rods (16) are all slidably connected to the circular plate (10), and a plurality of push blocks (19) adapted to the filter tank are installed on the top of the circular plate (10).

4. The energy-saving HVAC drainage device according to claim 2, characterized in that: The second cleaning mechanism comprises a second driving motor (23) installed inside the driving screw rod (22); a first electric telescopic rod (24) is installed at the output end of the second driving motor (23); a driving rod (12) is installed on the outer wall of the first electric telescopic rod (24); and a plurality of rotating plates (13) adapted to the top of the filter plate (9) are installed on the outer wall of the driving rod (12).

5. The energy-saving HVAC drainage device according to claim 4, characterized in that: A groove (27) is formed inside each of the plurality of rotating plates (13), two second electric telescopic rods (28) are installed inside each of the plurality of grooves (27), and a cleaning brush (32) is installed at the telescopic ends of the two second electric telescopic rods (28).

6. The energy-saving HVAC drainage device according to claim 4, characterized in that: A round block (29) is installed at the telescopic end of the first electric telescopic rod (24), a round groove (30) is provided on the outer wall of the round block (29), and an annular air bag (31) is installed inside the round groove (30).

7. The energy-saving HVAC drainage device according to claim 2, characterized in that: Two belts (25) are rotatably mounted on the outer wall of the output end of the first driving motor (11), two fixed rods (17) are mounted inside the device body (1), a rotating shaft (20) is rotatably mounted on the adjacent ends of the two fixed rods (17), a driving wheel (26) is mounted on the top ends of the two rotating shafts (20), and the two belts (25) are rotatably matched with the adjacent driving wheels (26).

8. The energy-saving HVAC drainage device according to claim 7, characterized in that: The bottom ends of the two rotating shafts (20) extend to the inside of the corresponding water outlet pipe (3), and spiral blades (21) are installed on the outer walls of the two rotating shafts (20) located inside the water outlet pipe (3).

9. The energy-saving HVAC drainage device according to claim 1, characterized in that: The device body (1) is provided with a plurality of discharge outlets (14) on an outer wall close to the collection tank (5); a plurality of fixing seats (7) are installed at the top of the device body (1); a third electric telescopic rod (8) is installed at the bottom of each of the plurality of fixing seats (7); and a blocking plate (6) for blocking the plurality of discharge outlets (14) is installed at the telescopic ends of the plurality of third electric telescopic rods (8).

10. The energy-saving HVAC drainage device according to claim 9, characterized in that: A cover plate for sealing the top opening of the collecting tank (5) is installed at the bottom end of the blocking plate (6), and a filter screen (18) is installed at the bottom of the collecting tank (5).

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