Air conditioner drainage device

Abstract

A drainage pump is installed on an indoor unit of an air conditioner, the drainage pipe is provided with a drainage channel, the drainage channel comprises a first channel section communicating with the drainage pump and a second channel section communicating with the end, away from the drainage pump, of the first channel section, and a fixing plate is located between the first channel section and the second channel section and fixedly connected to the drainage pipe. The stopping plate is provided with a stopping position and a communicating position corresponding to the fixing plate, the stopping plate abuts against the surface, away from the drainage pump, of the fixing plate at the stopping position and is in sealed connection with the fixing plate so as to stop water flow from flowing into the first channel section from the second channel section, and a gap exists between the stopping plate and the fixing plate at the communicating position; the two ends of the elastic piece are fixedly connected to the stopping plate and the drainage pipe respectively, so that the stopping plate can be switched between the blocking position and the communicating position under pushing of the water flow, and the water flow can only flow from the first channel section to the second channel section in a one-way mode. The air conditioner condensate water is prevented from flowing back.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air conditioners, and in particular to an air conditioner drainage device. BACKGROUND

[0002] The temperature in the electrical room of an aluminum electrolysis plant is relatively high, and an air conditioner needs to be installed in the room. During use of the air conditioner, the condensate water of the air conditioner needs to be discharged to the outside. Unreasonable design of the existing drainage pipeline or blockage of the drainage pipeline can cause the condensate water to flow back, so that the condensate water always exists in the air conditioner, resulting in a humid internal environment of the air conditioner, which can affect the service life of internal components of the air conditioner over time. CONTENT OF THE UTILITY MODEL

[0003] The air conditioner drainage device provided by the embodiments of the present application can solve the problem of backflow of condensate water of an air conditioner.

[0004] In a first aspect, the embodiments of the present application provide an air conditioner drainage device, which comprises a drainage pump, a drainage pipe and an anti-backflow structure. The drainage pump is used to be installed in an indoor unit of an air conditioner. The drainage pipe has a drainage passage, which comprises a first passage section connected to the drainage pump and a second passage section connected to one end of the first passage section away from the drainage pump. The anti-backflow structure comprises a fixed plate, a stop plate and an elastic member. The fixed plate is located between the first passage section and the second passage section and is fixedly connected to the drainage pipe. The stop plate has a blocking position corresponding to the fixed plate and a communication position. In the blocking position, the stop plate abuts against the surface of the fixed plate away from the drainage pump and is sealingly connected to the fixed plate to block the water flow from the second passage section to the first passage section. In the communication position, there is a gap between the stop plate and the fixed plate to enable the water flow to flow back and forth between the first passage section and the second passage section. The two ends of the elastic member are fixedly connected to the stop plate and the drainage pipe, respectively, so that the stop plate can be switched between the blocking position and the communication position under the push of the water flow, and the water flow can only unidirectionally flow from the first passage section to the second passage section.

[0005] In some embodiments, the drainage pipe comprises a cover body and a drainage main body. The cover body is provided with a connecting body extending along the length direction of the drainage pipe. The connecting body is in the shape of a triangular prism. The drainage main body is provided with a glue accommodating groove matched with the connecting body. An adhesive is arranged in the glue accommodating groove to enable the cover body to be covered on the drainage main body when the connecting body is matched with the glue accommodating groove. The cover body is provided with the fixed plate, and the drainage main body is provided with the stop plate and the elastic member.

[0006] In some embodiments, the cover body is above the drainage main body, and the stop plate is hinged to the drainage main body.

[0007] In some embodiments, the stop plate is inclined, and the inclination angle of the stop plate relative to the fixed plate is θ when the stop plate is in the blocking position, wherein 30° < θ < 80°.

[0008] In some embodiments, the stop plate is at least partially outwardly convex with an abutting portion, the abutting portion is sawtoothed, the fixed plate is provided with an abutting groove adapted to the abutting portion, and the surface of the abutting portion is fitted with the inner surface of the abutting groove when the stop plate is in the blocking position.

[0009] In some embodiments, the inner surface of the abutting groove is provided with a waterproof pad, and the material of the waterproof pad is soft.

[0010] In some embodiments, the stop plate is provided with a pushing structure, the pushing structure includes a floating rod and a buoyant plate, one end of the floating rod is connected to the surface of the stop plate facing the fixed plate, the buoyant plate is connected to the other end of the floating rod, and the density of the buoyant plate is less than the density of water.

[0011] In some embodiments, the outer peripheral wall of the drain pipe is provided with a water receiving portion, the water receiving portion is provided with a water collecting groove, and the portion of the drain pipe corresponding to the first channel section is provided with a first drain hole in communication with the water collecting groove.

[0012] In some embodiments, the air conditioner drain device further includes a drainage structure, the drainage structure includes a support plate, a first drainage plate, and a second drainage plate, the support plate is connected to the inner wall of the drain pipe, one end of the first drainage plate is fixedly connected to the support plate, the other end of the first drainage plate is outwardly convex with a drain portion toward the support plate, one end of the second drainage plate is fixedly connected to the inner wall of the drain pipe, and the other end of the second drainage plate is fixedly connected to the drain portion, the drain portion is provided with a second drain hole between the first drainage plate and the second drainage plate, the second drain hole is disposed away from the drain body, and the abutting portion of the fixed plate and the stop plate is disposed close to the drain body, wherein the second drainage plate and the drain portion are below the first drainage plate, and the first drainage plate, the second drainage plate, the drain portion, and the inner wall of the drain pipe form an accommodation cavity in communication with the first drain hole and the second drain hole.

[0013] In some embodiments, the water receiving portion is provided with a flow guide pipe, and the flow guide pipe is in communication with the water collecting groove.

[0014] When the condensate water of the air conditioner needs to be discharged, the drainage pump is started, the drainage pump will introduce the condensate water into the drain pipe, and can make the condensate water flow from the inlet of the drain pipe to the outlet of the drain pipe, in the process of the condensate water flowing to the outlet, the condensate water will push the stop plate to move away from the drainage pump, so that the stop plate is separated from the fixed plate and is in the communication position, the condensate water flows from the first channel section into the second channel section, and the stop plate will be restored to abut against the fixed plate under the elastic force of the elastic member, that is, the stop plate continues to be in the blocking position to block the condensate water in the second channel section from flowing back to the first channel section, thereby preventing the backflow condensate water from flowing into the air conditioner. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0016] Figure 1 It is a top view structural schematic diagram of the air conditioner drainage device in the embodiments of the present application.

[0017] Figure 2 It is a sectional view structural schematic diagram of the air conditioner drainage device in the embodiments of the present application. Figure 1

[0018] Figure 3 It is an enlarged structural schematic diagram of the position A of the air conditioner drainage device in the embodiments of the present application. Figure 2

[0019] Figure 4 It is a front view structural schematic diagram of the air conditioner drainage device in the embodiments of the present application.

[0020] Figure 5 It is a side view structural schematic diagram of the cover and the fixed plate of the present application.

[0021] Figure 6 It is a side view structural schematic diagram of the drainage main body of the present application.

[0022] Explanation of reference signs:

[0023] ​​100, Air conditioner drainage device; 1, Drain pipe; 2, Drain pump; 3, First drainage plate; 4, Water receiving part; 11, Second channel section; 12, First channel section; 13, Fixed plate; 14, Stop plate; 15, Cover body; 16, Drainage main body; 31, Drainage part; 32, Support plate; 41, Water collecting groove; 42, Flow guide pipe; 121, Containing cavity; 122, First drainage hole; 131, Abutting groove; 141, Floating rod; 142, Elastic member; 143, Abutting part; 151, Connecting body; 161, Containing groove; 311, Second drainage hole; 312, Second drainage plate; 1411, Buoyancy plate.

[0024] The implementation, functional features and advantages of the present application will be further described with reference to the accompanying drawings in conjunction with the embodiments. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0026] The temperature in the electrical room of an aluminum electrolysis plant is relatively high, and an air conditioner needs to be installed in the room. During the use of the air conditioner, the condensate water of the air conditioner needs to be discharged to the outside. The unreasonable design of the existing drainage pipe or the blockage of the drainage pipe will cause the condensate water to flow back, so that there is always condensate water in the air conditioner, which causes the internal environment of the air conditioner to be damp, and the service life of the internal parts of the air conditioner will be affected after a long time.

[0027] In view of this, the present application provides an air conditioner drainage device, Figures 1 to 6 The structure of the air conditioner drainage device of the present application is shown in the figure.

[0028] Please refer to Figure 1 and Figure 2The application provides an air conditioner drainage device 100, which comprises a drainage pump 2, a drainage pipe 1 and an anti-backflow structure, the drainage pump 2 is used for being installed on an indoor unit of an air conditioner, the drainage pipe has a drainage channel, the drainage channel comprises a first channel section 12 communicated with the drainage pump and a second channel section 11 communicated with one end of the first channel section 12 away from the drainage pump 2, and the anti-backflow structure comprises a fixed plate 13, a stop plate 14 and an elastic element 142, the fixed plate 13 is located between the first channel section 12 and the second channel section 11 and is fixedly connected to the drainage pipe 1, wherein the stop plate 14 has a blocking position corresponding to the fixed plate 13 and a communication position, in the blocking position, the stop plate 14 abuts against a surface of the fixed plate 13 away from the drainage pump 2 and is in sealed connection with the fixed plate 13, so as to block the water flow from flowing from the second channel section 11 into the first channel section 12, in the communication position, there is a gap between the stop plate 14 and the fixed plate 13, so that the water flow can flow back and forth between the first channel section 12 and the second channel section 11, and the two ends of the elastic element 142 are fixedly connected to the stop plate 14 and the drainage pipe 1 respectively, so that the stop plate 14 can be switched between the blocking position and the communication position under the pushing of the water flow, and the water flow can only flow from the first channel section 12 to the second channel section 11 in one direction.

[0029] In the technical scheme, when the stop plate 14 abuts against the surface of the fixed plate 13 away from the drainage pump 2, the stop plate 14 is in the blocking position, and the stop plate 14 can be pushed by the condensed water to move towards the outlet of the drainage pipe 1 when the condensed water flows from the drainage pump 2 to the outlet of the drainage pipe 1, so as to be separated from the fixed plate 13, one end of the elastic element 142 is connected to the drainage pipe 1, and the other end of the elastic element 142 can be connected to the surface of the stop plate 14 facing the fixed plate 13 or the surface of the stop plate 14 away from the fixed plate 13, when the condensed water flows into the second channel section 11, the elastic element 142 is compressed or stretched to restore the abutment between the stop plate 14 and the fixed plate 13, so that the stop plate 14 continues to be in the blocking position, thereby preventing the backflow of the condensed water into the indoor unit of the air conditioner and avoiding affecting the service life of the parts of the air conditioner.

[0030] It should be noted that the drainage pipe 1 can be a hard water pipe, the drainage pipe 1 can be horizontally installed or downwardly inclinedly installed, and the drainage pipe 1 can extend to the outdoor, so that the condensed water is discharged to the outdoor, there are not only one reason for the backflow of the condensed water in the drainage pipe 1 of the air conditioner, the condensed water can backflow due to the blockage of the drainage pipe 1, the backflow of the condensed water can be caused by the reverse siphon phenomenon, that is, the negative pressure is generated in the drainage pipe 1 when the condensed water is discharged, so that the condensed water backflows, or the backflow of the condensed water can be caused by improper design and installation of the existing drainage pipe 1 of the air conditioner, wherein the input end of the drainage pump 2 is communicated with the air conditioner, and the output end of the drainage pump 2 is communicated with the drainage pipe 1, so as to introduce the condensed water in the air conditioner into the drainage pipe 1.

[0031] It can be understood that the inner wall of the drain pipe 1 provided with the stop plate 14 is inclined downward, and after the condensate water is blocked by the stop plate 14, the condensate water will automatically flow out of the outlet of the drain pipe 1 under the action of gravity. The inner wall of the drain pipe 1 can also be provided with a fixed seat, and the two ends of the elastic member 142 are fixedly connected with the stop plate 14 and the fixed seat respectively. The fixed seat can be between the drain pump 2 and the stop plate 14, or between the stop plate 14 and the outlet of the drain pipe 1. The elastic member 142 can be a conical spiral spring to provide stable elastic force, so that the stop plate 14 moves more stably.

[0032] Because the drain pipe 1 is long and the pipe opening of the drain pipe 1 is small, in order to facilitate the arrangement of the fixed plate 13, the elastic member 142 and the stop plate 14 in the drain pipe 1, in the embodiment of the present application, please refer to Figures 4 to 6 , the drain pipe 1 includes a cover body 15 and a drain body 16. The cover body 15 is provided with a connecting body 151 extending along the length direction of the drain pipe 1. The connecting body 151 is in the shape of a triangular prism. The drain body 16 is provided with a glue containing groove 161 matched with the connecting body 151. The glue containing groove 161 is provided with an adhesive therein, so that when the connecting body 151 is matched with the glue containing groove 161, the cover body 15 is covered on the drain body 16. The cover body 15 is provided with the fixed plate 13. The drain body 16 is provided with the stop plate 14 and the elastic member 142. It should be noted that the cover body and the drain body can be half of the drain pipe, that is, the cross section of the cover body and the drain body can be a semicircle with equal diameters. When assembling, the fixed plate 13 can be installed on the cover body 15 first. Then the stop plate 14 and the elastic member 142 are arranged in the drain body 16. Then the cover body 15 is covered on the drain body 16. The connecting body 151 is inserted into the glue containing groove 161 filled with the adhesive, and the cover body 15 and the drain body 16 are tightly attached, thereby assembling a complete drain pipe 1. The connecting body 151 is in the shape of a triangular prism, that is, the cross section of the connecting body 151 can be a triangle. The glue containing groove 161 is matched with the connecting body 151, so the cross section of the glue containing groove 161 can also be a triangle. Since a polygon is close to a circle, the connecting body 151 with a polygonal cross section is easier to roll. The number of sides of a triangle is smaller. The connecting body 151 with a triangular cross section in the present application can be more stably inserted into and matched with the glue containing groove 161, so that the cover body 15 and the drain body 16 are not easy to separate. The adhesive in the glue containing groove 161 can make the adhesive have more contact surfaces with the cover body 15 and the drain body 16, so that the cover body 15 and the drain body 16 are more firmly bonded, further improving the firmness of the complete drain pipe 1 assembled by the cover body 15 and the drain body 16. It can be understood that the cover body 15 is above the drain body 16. The adhesive can be glue or waterproof glue.

[0033] In order to reduce the frictional resistance between the inner wall of the drain pipe 1 and the bottom of the stop plate 14 during the movement of the stop plate 14, the bottom of the stop plate 14 can be provided with a roller to convert the sliding frictional force received by the stop plate 14 into rolling frictional force. In the embodiment of the present application, the cover 15 is above the drain body 16, and the stop plate 14 is hinged to the drain body 16. Thus, when the condensed water flows from the first channel section 12 to the second channel section 11, the condensed water pushes the stop plate 14 to rotate away from the drain pump 2 without contacting the inner wall of the drain pipe 1, thereby making the stop plate 14 disengage from the fixed plate 13 and reducing the frictional resistance received by the stop plate 14, so that the stop plate 14 can more smoothly move from the blocking position to the communication position. The drain body 16 is below the cover 15. When the condensed water flows back, a small part of the backflowing condensed water will first contact the stop plate 14. As the water level of the condensed water rises, the stop plate 14 will gradually receive more and more pushing force from the condensed water, thereby making the stop plate 14 abut against the fixed plate 13 more and more tightly, reducing the possibility that the stop plate 14 loosens due to some reasons and allows the condensed water to enter the first channel section 12, and further blocking the backflow of the condensed water to the inside of the air conditioner.

[0034] In order to make the stop plate 14 abut against the fixed plate 13 more tightly when the condensed water flows back, in the embodiment of the present application, the stop plate 14 is arranged obliquely, and when the stop plate 14 is in the blocking position, the oblique angle of the stop plate 14 relative to the fixed plate 13 is θ, wherein 30°<θ<80°. θ should not be too small, otherwise when the stop plate 14 abuts against the fixed plate 13, the stop plate 14 will be close to vertical, and when the condensed water reaches the abutting position of the stop plate 14 and the fixed plate 13, the stop plate 14 is easy to loosen, and the stop plate 14 has a tendency to rotate away from the drain pump 2, which is not conducive to preventing the backflow of the condensed water. Of course, θ should not be too large, otherwise when the stop plate 14 is in the blocking position, the stop plate 14 will be close to horizontal, which is not conducive to the condensed water pushing the stop plate 14 away during the process of the condensed water flowing from the first channel section 12 to the second channel section 11, thereby not conducive to the discharge of the condensed water. Therefore, 30°<θ<80°, for example, θ can be 40°, 50° and 60°.

[0035] In order to prevent the abutting surface of the stop plate 14 and the fixed plate 13 from having a small gap due to unevenness and allowing a small amount of condensed water to flow back into the first channel section 12, further reducing the probability that the backflowing condensed water flows into the first channel section 12 through the abutting position of the stop plate 14 and the fixed plate 13, in the embodiment of the present application, please refer to Figure 3The stop plate 14 is at least partially outwardly convex with an abutting portion 143, which is provided in a sawtooth shape. The fixed plate 13 is provided with an abutting groove 131 adapted to the abutting portion 143. When the stop plate 14 is in the blocking position, the surface of the abutting portion 143 is in close contact with the inner surface of the abutting groove 131. In this way, the fixed plate 13 can have more abutting surface with the stop plate 14 to realize the sealing of the stop plate 14 and the fixed plate 13, and further reduce the possibility of the condensed water flowing back into the first channel segment 12 from the abutting position of the stop plate 14 and the fixed plate 13. When the stop plate 14 is in the blocking position, the fixed plate 13 no longer only supports the stop plate 14 by friction, but also supports the stop plate 14 by the abutting groove 131, so that the stop plate 14 is more stably in the blocking position.

[0036] In order to increase the sealing performance of the abutting position of the stop plate 14 and the fixed plate 13, in the embodiment of the present application, the inner surface of the abutting groove 131 is provided with a waterproof pad layer, and the material of the waterproof pad layer is a soft material. The soft waterproof pad layer can fill the uneven abutting surface of the fixed plate 13 and the stop plate 14, reduce the gap, increase the sealing performance, and reduce the probability of the condensed water flowing from the first abutting surface to the second abutting surface. The material of the waterproof pad layer can be rubber or silicone.

[0037] In the process of the condensed water being discharged from the first channel segment 12 to the second channel segment 11, in order to make the condensed water more easily push the stop plate 14 to rotate away from the drain pump 2, and facilitate the discharge of the condensed water, in the embodiment of the present application, the stop plate 14 is provided with a pushing structure, which includes a floating rod 141 and a buoyant plate 1411. One end of the floating rod 141 is connected to the surface of the stop plate 14 facing the fixed plate 13, and the buoyant plate 1411 is connected to the other end of the floating rod 141. The density of the buoyant plate 1411 is less than that of water. Since the density of the buoyant plate 1411 is less than that of water, when the condensed water is below the buoyant plate 1411, the buoyant plate 1411 will be upwardly moved by the buoyancy of the condensed water as the water level rises. The floating rod 141 connected to the buoyant plate 1411 will push the stop plate 14 upwardly under the driving of the buoyant plate 1411, so that the stop plate 14 is separated from the fixed plate 13, and the condensed water can smoothly enter the second channel segment 11. The arrangement of the buoyant plate 1411 and the floating rod 141 can make the stop plate 14 separate from the fixed plate 13 when there is less condensed water. The stop plate 14 not only receives the horizontal pushing force of the condensed water, but also receives the upward pushing force of the floating rod 141, so that the stop plate 14 is easily pushed.

[0038] To prevent the condensate water flowing back to the first channel section 12 from continuing to flow into the air conditioner, in the embodiment of the present application, the outer peripheral wall of the drain pipe 1 is provided with a water receiving part 4, the water receiving part 4 is provided with a water collecting groove 41, the part of the drain pipe 1 corresponding to the first channel section 12 is provided with a first drain hole 122 communicating with the water collecting groove 41, when a small amount of condensate water flows back into the first channel section 12 from the second channel section 11, the condensate water will flow into the first drain hole 122, and then flow into the water collecting groove 41 communicating therewith, wherein the water receiving part 4 can be detachably arranged on the outer peripheral wall of the drain pipe 1, when the staff regularly inspects the air conditioner, the water receiving part 4 can be detached, and the condensate water in the water receiving part 4 can be poured out of the room, of course, the water receiving part 4 can also be fixedly connected to the outer peripheral wall of the drain pipe 1, and a control valve is arranged at the bottom of the water receiving part 4, by opening the control valve, the condensate water in the water collecting groove 41 can be discharged, it can be understood that the backflow prevention structure is the first line of defense to prevent the condensate water from flowing back to the air conditioner, and the water collecting groove 41 is the second line of defense to prevent the condensate water from flowing back to the air conditioner.

[0039] When the condensate water is discharged from the air conditioner to the direction of the second channel section 11, in order to avoid that after the condensate water pushes away the stop plate 14, part of the condensate water flows into the second channel section 11, and still a small part of the condensate water is in the water collecting groove 41, and the condensate water cannot be discharged in time, in the embodiment of the present application, the air conditioner drain device 100 further comprises a flow guiding structure, the flow guiding structure comprises a support plate 32, a first flow guiding plate 3 and a second flow guiding plate 312, the support plate 32 is connected with the inner wall of the drain pipe 1, one end of the first flow guiding plate 3 is fixedly connected to the support plate 32, and the other end of the first flow guiding plate 3 protrudes towards the support plate 32 and is provided with a drain part 31, one end of the second flow guiding plate 312 is fixedly connected to the inner wall of the drain pipe 1, and the other end of the second flow guiding plate 312 is fixedly connected to the drain part 31, the drain part 31 is provided with a second drain hole 311 between the first flow guiding plate 3 and the second flow guiding plate 312, the second drain hole 311 is arranged away from the drain main body 16, the abutting position of the fixed plate 13 and the stop plate 14 is arranged close to the drain main body 16, the second flow guiding plate 312 and the drain part 31 are below the first flow guiding plate 3, and the first flow guiding plate 3, the second flow guiding plate 312, the drain part 31 and the inner wall of the drain pipe 1 surround to form a containing cavity 121 communicating with the first drain hole 122 and the second drain hole 311, when the condensate water enters the first channel section 12, it will flow on the first flow guiding plate 3 and the second flow guiding plate 312 in sequence, and after passing through the second flow guiding plate 312, it will contact the stop plate 14, since the second drain hole 311 is away from the drain main body 16, water flows to low places, therefore, as the water level of the condensate water rises, the condensate water will flow into the second channel section 11 from the abutting position of the stop plate 14 and the fixed plate 13, or from the two sides of the stop plate 14 contacting the inner wall of the drain pipe 1 into the second channel section 11, and will not flow into the water collecting groove 41, and when there is a small amount of condensate water flowing back, it will enter the containing cavity 121 through the second drain hole 311, and then enter the water collecting groove 41 through the first drain hole.

[0040] In order to prevent the backflow of the condensed water from overflowing the water collecting tank 41 and flowing back to the inside of the air conditioner, the water collecting part 4 is provided with a flow guide pipe 42 which is in communication with the water collecting tank 41, wherein the flow guide pipe 42 can be a flexible pipe or a rigid pipe, the flow guide pipe 42 can extend to the outside, the condensed water in the water collecting tank 41 can be discharged to the outside through the flow guide pipe 42, and the flow guide pipe 42 is in communication with the outdoor atmosphere and the water collecting tank 41, and the water collecting tank 41 is in communication with the drain pipe 1 through the first drain hole 122 and the second drain hole 311, so that the probability of the negative pressure in the drain pipe 1 can be reduced, and the possibility of the backflow of the condensed water can be further reduced.

[0041] It can be understood that the drain pipe 1 can be manually dredged before the drain pump 2 is started to clean the blockage in the drain pipe 1, so as to avoid the backflow of the condensed water due to the blockage of the drain pipe 1, and of course, an automatic dredging device can also be arranged at the water outlet of the drain pipe 1, the automatic dredging device comprising a linear driving device and a dredging rod, the dredging rod being drivingly connected to the linear driving device, the dredging rod extending along the length direction of the drain pipe 1 and extending into the drain pipe 1, wherein the linear driving device can be electrically connected to the drain pump 2, and the linear driving device drives the dredging rod to reciprocate along the length direction of the drain pipe 1 at the same time when the drain pump 2 is started, so that the condensed water can be discharged together with the blockage.

[0042] In the drawings of the embodiments, the same or similar reference numerals correspond to the same or similar components; in the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the positional relationships in the drawings are only used for exemplary illustration, and cannot be understood as a limitation on the present patent, for those skilled in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0043] The above description is only the preferred embodiments of the present application and is not intended to limit the present application, any modifications, equivalent replacements and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An air conditioner drain device, characterized by, The application relates to an air conditioner drainage device. The air conditioner drainage device comprises a drainage pump, a drainage pipe and an anti-backflow structure. The drainage pipe has a drainage channel, which comprises a first channel section connected to the drainage pump and a second channel section connected to one end of the first channel section away from the drainage pump. The anti-backflow structure comprises a fixed plate, a stop plate and an elastic member. The fixed plate is located between the first channel section and the second channel section and is fixed to the drainage pipe. The stop plate has a blocking position corresponding to the fixed plate and a communication position. In the blocking position, the stop plate abuts against the surface of the fixed plate away from the drainage pump and is in sealed connection with the fixed plate to block water flow from the second channel section to the first channel section. In the communication position, a gap exists between the stop plate and the fixed plate to enable water flow to flow back and forth in the first channel section and the second channel section.

2. The air conditioner drain device of claim 1, wherein, The elastic member has two ends fixed to the stop plate and the drainage pipe respectively to enable the stop plate to switch between the blocking position and the communication position under the push of water flow.

3. The air conditioner drain device of claim 2, wherein, The stop plate is provided with a push structure, which comprises a floating rod connected to the surface of the stop plate facing the fixed plate and a buoyancy plate connected to the other end of the floating rod.

4. The air conditioner drain device of claim 3, wherein, The density of the buoyancy plate is less than that of water.

5. The air conditioner drain device of claim 1, wherein, The drainage pipe comprises a cover body provided with a connecting body extending along the length direction of the drainage pipe and a drainage main body provided with a glue accommodating groove matched with the connecting body.

6. The air conditioner drain device of claim 5, wherein, The glue accommodating groove is provided with an adhesive to enable the cover body to cover the drainage main body when the connecting body is matched with the glue accommodating groove.

7. The air conditioner drain device of claim 2, wherein The cover body is located above the drainage main body.

8. The air conditioner drain device of claim 7, wherein, The stop plate is hinged to the drainage main body. The stop plate is inclined and the inclination angle of the stop plate relative to the fixed plate is theta (30°<theta<80°) when the stop plate is in the blocking position. The stop plate is at least partially outwardly convexly provided with an abutting portion in a sawtooth shape. The fixed plate is provided with an abutting groove matched with the abutting portion. The inner surface of the abutting groove is provided with a waterproof pad layer made of soft material. The outer peripheral wall of the drainage pipe is provided with a water receiving portion provided with a water collecting groove. The part of the drainage pipe corresponding to the first channel section is provided with a first drainage hole communicated with the water collecting groove. The air conditioner drainage device further comprises a drainage guiding structure. The drainage guiding structure comprises a support plate connected to the inner wall of the drainage pipe, a first drainage guiding plate having one end fixed to the support plate and the other end outwardly convexly provided with a drainage portion toward the support plate and a second drainage guiding plate connected to the support plate and provided with a drainage hole communicated with the drainage portion of the first drainage guiding plate. The second drainage plate is fixedly connected to one end of the inner wall of the drain pipe and the other end of the drain part, the drain part is provided with a second drain hole between the first drainage plate and the second drainage plate, the second drain hole is arranged away from the drain body, and the abutting position of the fixed plate and the stop plate is arranged close to the drain body; Wherein, the second drainage plate and the drain part are below the first drainage plate, and the first drainage plate, the second drainage plate, the drain part and the inner wall of the drain pipe form a containing cavity in communication with the first drain hole and the second drain hole.

9. The air conditioner drain device of claim 7, wherein, The water receiving part is provided with a flow guide pipe in communication with the water collecting tank.

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