Novel drainage pump and drainage equipment

Abstract

The utility model discloses a novel drainage pump and drainage equipment, and relates to the drainage pump technical field, the novel drainage pump comprises a shell, a water outlet pipe and a control assembly, a water pump motor is installed in the shell, the water outlet pipe comprises a first pipeline and a control pipeline which are mutually communicated, one end of the first pipeline far away from the control pipeline is communicated with the water outlet end of the water pump motor; the control assembly communicates with the control pipeline to control on-off of the water outlet pipe. The control assembly is adopted to control on-off of the water outlet pipe, when the water pump motor is started, the water outlet pipe is kept smooth, and when the water pump motor stops working, the control assembly cuts off a flow path of the water outlet pipe, so that the siphon effect and liquid backflow are avoided, the stability and safety of the system are improved, and the user experience is improved.

Description

Technical Field

[0001] This utility model relates to the field of drainage pump technology, and in particular to a novel drainage pump and drainage equipment. Background Technology

[0002] In a central air conditioning system, the drain pump is mainly responsible for discharging condensate or other wastewater from the system to maintain its normal operation. Its working principle usually involves the pump's start-up, water intake, pressurization, water supply, and circulation. When the air conditioning system needs to drain water, the drain pump will start and draw wastewater through the inlet pipe, then pressurize it and discharge it to the designated drainage point.

[0003] For convenient drainage, the outlet pipes of central air conditioning systems are usually designed to be long and extend outdoors or to other locations away from the building to ensure that condensate or other wastewater is effectively discharged and to prevent accumulation inside the system. The outlet pipes usually extend downwards, forming a certain slope, which helps the wastewater flow smoothly under the action of gravity. At the same time, the downward extension design can also prevent wastewater from accumulating or forming scale inside the pipes. This also means that the water outlet (i.e., the drain outlet) of the outlet pipe is usually lower than the water storage chamber of the drain pump. This height difference may cause a siphon effect when the drain pump stops operating.

[0004] The siphon effect may cause the water in the storage chamber to be completely pumped out. This will not only affect the normal operation of the drainage pump, but may also cause a negative pressure state inside the system, threatening the stability and safety of the system. In addition, the outflow of water from the storage chamber may also cause abnormal noises and other problems, affecting the user experience. Utility Model Content

[0005] The main purpose of this utility model is to propose a new type of drainage pump and drainage equipment, which aims to solve the problem of siphoning in drainage pumps.

[0006] To achieve the above objectives, the present invention proposes a novel drainage pump, comprising:

[0007] A housing, in which a water pump motor is installed;

[0008] The water outlet pipe includes a first pipe and a control pipe that are interconnected, and the end of the first pipe away from the control pipe is connected to the water outlet end of the water pump motor.

[0009] A control component, connected to the control pipe, for controlling the on / off state of the water outlet pipe.

[0010] In one embodiment, the control component includes a plugging element whose cross-sectional shape is adapted to the cross-sectional shape of the control pipe.

[0011] In one embodiment, the control component further includes a drive member, the output end of which is connected to the blockage member to drive the blockage member to move and control the opening and closing of the water outlet pipe.

[0012] In one embodiment, the water outlet pipe further includes a second pipe, one end of which is connected to the control pipe;

[0013] The control pipe has a first connecting pipe and a second connecting pipe on its side wall, and both the first connecting pipe and the second connecting pipe are connected to the inside of the control pipe, respectively for inserting into the first pipe and the second pipe.

[0014] In one embodiment, the control pipe has a first connection port and a second connection port on its side wall. The first connection pipe communicates with the interior of the control pipe through the first connection port, and the second connection pipe communicates with the interior of the control pipe through the second connection port.

[0015] The plug is used to block the first connection port and / or the second connection port.

[0016] In one embodiment, the housing includes a lower housing, the lower housing includes a side wall and a bottom wall, the side wall and the bottom wall together form a water storage cavity, and the water inlet end of the water pump motor is connected to the water storage cavity.

[0017] In one embodiment, the novel drainage pump further includes a detection component, which includes a floating element located inside the water storage chamber for detecting the water level inside the water storage chamber.

[0018] In one embodiment, the housing further includes a middle housing, which is connected to the lower housing and located on one side of the water storage cavity opening direction to cover the water storage cavity opening.

[0019] In one embodiment, the detection component further includes a probe that passes through the middle housing and is partially located within the water storage cavity, for detecting the water level inside the water storage cavity.

[0020] This utility model also proposes a drainage device, which includes the novel drainage pump described above.

[0021] The technical solution of this utility model uses the control component to control the opening and closing of the water outlet pipe. When the water pump motor starts, the water outlet pipe remains unobstructed. When the water pump motor stops working, the control component cuts off the flow path of the water outlet pipe to avoid siphon effect and liquid backflow, thereby improving the stability and safety of the system and enhancing the user experience. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0023] Figure 1 An assembly drawing of an embodiment of the novel drainage pump provided by this utility model;

[0024] Figure 2 A schematic diagram of another embodiment of the novel drainage pump provided by this utility model;

[0025] Figure 3 This is a schematic diagram of the detection component.

[0026] Figure 4 This is a schematic diagram of a structure of a control component and control pipe according to one embodiment;

[0027] Figure 5 This is a schematic diagram of another embodiment of the control components and control pipes.

[0028] Explanation of icon numbers:

[0029] 100. New type of drainage pump; 1. Housing; 11. Lower housing; 111. Water storage chamber; 112. Inlet pipe; 12. Middle housing; 13. Upper housing; 14. Top cover; 2. Outlet pipe; 21. First pipe; 22. Control pipe; 221. Control port; 23. Second pipe; 24. First connecting pipe; 241. First connection port; 25. Second connecting pipe; 251. Second connection port; 3. Control component; 31. Blocking component; 32. Driving component; 4. Pump motor; 5. Detection component; 51. Floating component; 52. Detector component.

[0030] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0032] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0033] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0034] In a central air conditioning system, the drain pump is mainly responsible for discharging condensate or other wastewater from the system to maintain its normal operation. Its working principle usually involves the pump's start-up, water intake, pressurization, water supply, and circulation. When the air conditioning system needs to drain water, the drain pump will start and draw wastewater through the inlet pipe, then pressurize it and discharge it to the designated drainage point.

[0035] For convenient drainage, the outlet pipes of central air conditioning systems are usually designed to be long and extend outdoors or to other locations away from the building to ensure that condensate or other wastewater is effectively discharged and to prevent accumulation inside the system. The outlet pipes usually extend downwards, forming a certain slope, which helps the wastewater flow smoothly under the action of gravity. At the same time, the downward extension design can also prevent wastewater from accumulating or forming scale inside the pipes. This also means that the water outlet (i.e., the drain outlet) of the outlet pipe is usually lower than the water storage chamber of the drain pump. This height difference may cause a siphon effect when the drain pump stops operating.

[0036] The siphon effect may cause the water in the storage chamber to be completely pumped out. This will not only affect the normal operation of the drainage pump, but may also cause a negative pressure state inside the system, threatening the stability and safety of the system. In addition, the outflow of water from the storage chamber may also cause abnormal noises and other problems, affecting the user experience.

[0037] This utility model proposes a novel drainage pump 100.

[0038] Please see Figures 1 to 5 In one embodiment of the present invention, the novel drainage pump 100 includes:

[0039] Housing 1, wherein a water pump motor 4 is installed inside the housing 1;

[0040] The water outlet pipe 2 includes a first pipe 21 and a control pipe 22 that are interconnected. The end of the first pipe 21 away from the control pipe 22 is connected to the water outlet end of the water pump motor 4.

[0041] Control component 3, which is connected to control pipe 22, to control the opening and closing of water outlet pipe 2;

[0042] Optionally, the water pump motor 4 is a centrifugal pump with an impeller-type pump body structure. It should be noted that traditional central air conditioning drain pumps use diaphragm pumps. If a diaphragm pump is not used for a long time, Legionella bacteria in the water will stick to the diaphragm and cause blockage, resulting in the inability to drain water the following year. Centrifugal pumps use an impeller-type structure. Their working principle is to generate centrifugal force through the rotation of the impeller, thereby drawing water out. Compared with diaphragm pumps, this design is less likely to cause Legionella bacteria and other impurities in the water to stick to the pump body and cause blockage due to prolonged inactivity. Therefore, using a centrifugal pump can significantly reduce the risk of the drain pump failing to drain water due to blockage.

[0043] It should be noted that traditional central air conditioning drain pumps, which are mostly diaphragm pumps, are mostly unidirectional and do not cause liquid backflow. However, when using impeller-type centrifugal pumps, liquid backflow may occur if the motor stops running. By cutting off the flow path of the outlet pipe 2 through the control component 3, liquid backflow can be effectively avoided.

[0044] It is understandable that backflow will occur because the water outlet pipe 2 is higher in horizontal height than the water pump motor 4. Therefore, the control component 3 is located on the side of the water outlet pipe 2 close to the water pump motor 4 to achieve a better backflow prevention effect.

[0045] The technical solution of this utility model uses the control component 3 to control the opening and closing of the water outlet pipe 2. When the water pump motor 4 starts, the water outlet pipe 2 remains unobstructed. When the water pump motor 4 stops working, the control component 3 cuts off the flow path of the water outlet pipe 2 to avoid siphon effect and liquid backflow, thereby improving the stability and safety of the system and enhancing the user experience. Optionally, the control component 3 includes a blocking component 31, the cross-sectional shape of which is adapted to the cross-sectional shape of the control pipe 22.

[0046] It is understood that when the plug 31 is inserted into the control pipe 22, a precise sealing effect can be achieved. This seal not only effectively prevents water from flowing when not needed, but also ensures that when the system needs to drain, water will not leak from the connection between the control pipe 22 and the control component 3, thus avoiding water leakage, reducing component damage or maintenance needs caused by water leakage, lowering system maintenance costs, and improving the reliability and safety of equipment operation.

[0047] In some embodiments, the plugging component 31 is also fitted with a waterproof gasket made of rubber. The rubber waterproof gasket can fit tightly against the inner wall of the control pipe 22, thereby further enhancing the sealing effect between the plugging component 31 and the control pipe 22 and improving the reliability of the system.

[0048] Optionally, the control component 3 further includes a drive component 32, the output end of which is connected to the blockage component 31 to drive the blockage component 31 to move and control the opening and closing of the water outlet pipe 2. It can be understood that by driving the blockage component 31 to move via the drive component 32, the flow path can be cut off, achieving automated control of the opening and closing of the water outlet pipe 2, eliminating the need for manual operation of the blockage component 31 by the user.

[0049] It should be noted that the novel drainage pump 100 also includes a control center. The pump motor 4 and the drive component 32 are both electrically connected to the control center to control the pump motor 4 and the drive component 32 to operate synchronously. When the pump motor 4 starts running, the drive component 32 controls the blockage component 31 to not cut off the flow path, ensuring normal operation of the equipment. When the pump motor 4 stops running, the drive component 32 controls the blockage component 31 to cut off the flow path, preventing siphon effect and backflow.

[0050] In some embodiments, the drive element 32 includes a solenoid valve electrically connected to the control center. The solenoid valve controls the movement of the blocking element 31, thereby controlling the flow path. Optionally, the drive element 32 may be a hydraulic component, a pneumatic component, or a drive motor; this embodiment does not impose specific limitations on this.

[0051] Optionally, the water outlet pipe 2 further includes a second pipe 23, one end of which is connected to the control pipe 22;

[0052] The control pipe 22 is provided with a first connecting pipe 24 and a second connecting pipe 25 on its side wall, and both the first connecting pipe 24 and the second connecting pipe 25 are connected to the inside of the control pipe 22, respectively for inserting the first pipe 21 and the second pipe 23.

[0053] It should be noted that when the flow path is unobstructed, the liquid flows out from the outlet of the water pump motor 4 and flows sequentially through the first pipe 21, the control pipe 22, and the second pipe 23. It can be understood that the first connecting pipe 24 and the second connecting pipe 25 facilitate the installation and fixation of the first pipe 21 and the second pipe 23. Furthermore, the first connecting pipe 24 and the second connecting pipe 25 can be arranged according to actual needs and site conditions to optimize the spatial layout of the drainage system, making it more compact and efficient.

[0054] Furthermore, the three-section arrangement of the first pipe 21, the control pipe 22, and the second pipe 23 allows the damaged part of the pipe to be removed when a component is damaged, without the need to replace the entire outlet pipe 2, thus reducing maintenance costs and increasing the maintainability and service life of the system.

[0055] In some embodiments, the axes of the first connecting pipe 24 and the second connecting pipe 25 are perpendicular to the axis of the control pipe 22.

[0056] It should be noted that the connection methods between the connecting pipe and the first pipe 21 and the second pipe 23 are varied. Taking the first pipe 21 as an example, in one embodiment, the inner cross-section of the first connecting pipe 24 is adapted to the outer cross-section of the first pipe 21. In another embodiment, the outer cross-section of the first connecting pipe 24 is adapted to the inner cross-section of the first pipe 21. In yet another embodiment, the first connecting pipe 24 and the first pipe 21 are interference-fitted to ensure sealing.

[0057] Optionally, the control pipe 22 has a first connection port 241 and a second connection port 251 on its side wall. The first connection pipe 24 is connected to the inside of the control pipe 22 through the first connection port 241, and the second connection pipe 25 is connected to the inside of the control pipe 22 through the second connection port 251.

[0058] The blocking component 31 is used to block the first connection port 241 and / or the second connection port 251.

[0059] It is understood that when the plug 31 blocks the first connection port 241 or the second connection port 251, the flow path of the water outlet pipe 2 can be cut off. In one embodiment, the plug 31 blocks both the first connection port 241 and the second connection port 251 to cut off the flow path. It is understood that the double blockage ensures that when either the first connection port 241 or the second connection port 251 leaks, the other connection port can still effectively ensure the cut-off of the flow path, thus improving stability.

[0060] like Figure 4 As shown, taking the blocking member 31 blocking the first connection port 241 as an example, in one embodiment, the driving member 32 drives the blocking member 31 to move along the axis of the control pipe 22. The length of the blocking member 31 is greater than the diameter of the connection port, so as to ensure that the blocking member 31 completely covers the first connection port 241 and forms an effective seal.

[0061] In another embodiment, the driving member 32 drives the blocking member 31 to rotate around the axis of the control pipe 22. The cross-sectional size of the blocking member 31 is smaller than that of the control pipe 22. The blocking member 31 is partially close to the inner wall of the control pipe 22, and the length of the blocking member 31 is greater than the diameter of the connection port. When the blocking member 31 rotates to a certain angle, the blocking member 31 blocks the first connection port 241 and cuts off the flow path.

[0062] In another embodiment, the cross-section of the blocking component 31 is consistent with the inner cross-section of the control pipe 22, and when the flow path is cut off, the blocking component 31 is located between the first connection port 241 and the second connection port 251.

[0063] like Figure 5 As shown, in some embodiments, the inner wall of the control pipe 22 protrudes inward and forms a control port 221. The cross-sectional area of ​​the control port 221 is smaller than the cross-sectional area of ​​the inner wall of the control pipe 22, and the cross-sectional area of ​​the blocking member 31 is larger than the control port 221. When the blocking member 31 abuts against the control port 221, the flow channel inside the control pipe 22 is cut off.

[0064] Optionally, the housing 1 includes a lower housing 11, the lower housing 11 includes a side wall and a bottom wall, the side wall and the bottom wall together form a water storage cavity 111, and the water inlet end of the water pump motor 4 is connected to the water storage cavity 111.

[0065] It should be noted that the water storage chamber 111 can temporarily store liquid. When the liquid volume is small, the water pump motor 4 will not be started. Not starting the water pump motor 4 can avoid unnecessary energy consumption, thereby reducing operating costs. At the same time, this design also helps to reduce the frequent starting and stopping of the water pump motor 4, extend its service life, and is more energy-efficient and environmentally friendly.

[0066] It should be noted that the outer wall of the lower housing 11 is provided with a water inlet pipe 112, which is connected to the water storage chamber 111, and liquid is discharged into the water storage chamber 111 through the water inlet pipe 112.

[0067] Optionally, the novel drainage pump 100 further includes a detection component 5, which includes a floating element 51 located inside the water storage chamber 111 for detecting the water level inside the water storage chamber 111.

[0068] It should be noted that the detection component 5 is electrically connected to the control center to detect the water level inside the water storage chamber 111. When the water level in the water storage chamber 111 reaches a certain height, the control center controls the water pump motor 4 to start and the control component 3 to release the cutoff of the flow channel.

[0069] like Figure 3 As shown, the floating component 51 can float on the liquid surface and moves up and down with the change of water level. By pre-setting, when the floating component 51 moves to a certain position, it transmits an electrical signal to the control center. By controlling the position of the floating component 51, the starting time of the water pump motor 4 can be accurately controlled, avoiding resource waste or performance degradation caused by starting too early or too late.

[0070] Understandably, the automatic start of the water pump motor 4 and release of the flow channel cutoff by the control center, without the need for manual intervention, improves the system's intelligence level and reduces operational difficulty and labor costs.

[0071] Optionally, the housing 1 further includes a middle housing 12, which is connected to the lower housing 11 and located on one side of the opening of the water storage cavity 111, to cover the opening of the water storage cavity 111. It should be noted that the middle housing 12 is fastened to the lower housing 11 and covers the opening of the water storage cavity 111, preventing liquid from leaking from inside the water storage cavity 111, ensuring the safe operation of the equipment, and also effectively preventing external impurities, dust, or moisture from entering the water storage cavity 111.

[0072] Furthermore, the connection design between the middle housing 12 and the lower housing 11 facilitates disassembly and assembly, thereby making it convenient for users to maintain and clean the water storage chamber 111. When it is necessary to clean the impurities inside the water storage chamber 111 or replace related parts, the operation can be easily completed by simply disassembling the lower housing 11.

[0073] In some embodiments, the middle housing 12 is connected to the lower housing 11 by a snap-fit ​​connection, which facilitates installation and disassembly.

[0074] Optionally, the detection component 5 further includes a detector 52, which passes through the middle housing 12 and is partially located within the water storage cavity 111.

[0075] It should be noted that the detector 52 is electrically connected to the control center. The detector 52 is used to further detect the water level. When the water level reaches a certain height, the detector 52 can receive a signal. The detector 52 can prevent the water level from reaching a certain height when the floating component 51 fails. As a supplement to the floating component 51, the detector 52 can continue to provide an accurate water level detection signal when the floating component 51 fails due to malfunction or other reasons. This dual detection mechanism greatly improves the reliability of water level detection and ensures that the water pump motor 4 starts or stops at the correct time.

[0076] like Figure 3 As shown, in some embodiments, the probe 52 includes a probe whose resistance changes when it comes into contact with the liquid, and transmits an electrical signal to the control center.

[0077] like Figure 2 As shown, in some embodiments, the housing 1 further includes an upper housing 13, which is fastened to the middle housing 12. The control center includes a circuit board located between the upper housing 13 and the middle housing 12, and the circuit board is protected by the upper housing 13 and the middle housing 12.

[0078] Furthermore, the upper housing 13 is provided with a groove for installing and fixing the control pipe 22. The upper housing 13 is also provided with an installation port. The water pump motor 4 protrudes from the installation port. The housing 1 also includes a cover. The cover is fastened to the installation port of the upper housing 13 to protect the water pump motor 4. The cover is also provided with a water outlet for the water outlet end of the water pump motor 4 to extend out.

[0079] This utility model also proposes a drainage device, which includes a novel drainage pump 100. The specific structure of the novel drainage pump 100 is as described in the above embodiments. Since this drainage device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0080] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A novel drainage pump, characterized in that, include: A housing, in which a water pump motor is installed; The water outlet pipe includes a first pipe and a control pipe that are interconnected, and the end of the first pipe away from the control pipe is connected to the water outlet end of the water pump motor. A control component, connected to the control pipe, for controlling the on / off state of the water outlet pipe.

2. The novel drainage pump as described in claim 1, characterized in that, The control component includes a plugging element whose cross-sectional shape is adapted to the cross-sectional shape of the control pipe.

3. The novel drainage pump as described in claim 2, characterized in that, The control component also includes a drive unit, the output end of which is connected to the blockage unit to drive the blockage unit to move and control the opening and closing of the water outlet pipe.

4. The novel drainage pump as described in claim 3, characterized in that, The water outlet pipe also includes a second pipe, one end of which is connected to the control pipe; The control pipe has a first connecting pipe and a second connecting pipe on its side wall, and both the first connecting pipe and the second connecting pipe are connected to the inside of the control pipe, respectively for inserting into the first pipe and the second pipe.

5. The novel drainage pump as described in claim 4, characterized in that, The control pipe has a first connection port and a second connection port on its side wall. The first connection pipe is connected to the inside of the control pipe through the first connection port, and the second connection pipe is connected to the inside of the control pipe through the second connection port. The plug is used to block the first connection port and / or the second connection port.

6. The novel drainage pump as described in claim 1, characterized in that, The housing includes a lower housing, which includes a side wall and a bottom wall. The side wall and bottom wall together form a water storage cavity, and the water inlet end of the water pump motor is connected to the water storage cavity.

7. The novel drainage pump as described in claim 6, characterized in that, The novel drainage pump also includes a detection component, which includes a floating element located inside the water storage chamber for detecting the water level inside the water storage chamber.

8. The novel drainage pump as described in claim 7, characterized in that, The housing also includes a middle housing, which is connected to the lower housing and located on one side of the water storage cavity opening to cover the water storage cavity opening.

9. The novel drainage pump as described in claim 8, characterized in that, The detection component also includes a probe that passes through the middle shell and is partially located inside the water storage cavity, for detecting the water level inside the water storage cavity.

10. A drainage device, characterized in that, The novel drainage pump includes any one of claims 1 to 9.

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