CN216495097U

CN216495097U - Drain pump structure and clean basic station

Info

Publication number: CN216495097U
Application number: CN202122403623.1U
Authority: CN
Inventors: 林伟劲
Original assignee: Yunjing Intelligence Technology Dongguan Co Ltd; Yunjing Intelligent Shenzhen Co Ltd
Current assignee: Yunjing Intelligent Innovation Shenzhen Co ltd; Yunjing Intelligent Shenzhen Co Ltd
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-05-13
Anticipated expiration: 2031-09-30
Also published as: EP4251890A1; US20230320553A1; WO2023051804A1

Abstract

The utility model discloses a drainage pump structure and a cleaning base station, wherein the drainage pump structure comprises: the drainage cavity is provided with a water inlet, a water outlet and an air port; the water inlet and the water outlet are respectively provided with the one-way valve, the one-way valve on the water inlet is in one-way circulation along the direction of the drainage cavity, and the one-way valve on the water outlet is in one-way circulation along the direction deviating from the drainage cavity; and the air source system is communicated with the air port and is used for supplying air to the air port, sucking air from the air port and adjusting the air volume of the air port. The drainage pump structure of the utility model prevents water and impurities from passing through the air source system during drainage, prolongs the service life of the air source system and improves the reliability of the air source system.

Description

Drain pump structure and clean basic station

Technical Field

The utility model relates to the field of cleaning equipment, in particular to a drainage pump structure and a cleaning base station.

Background

Along with the popularization of the sweeping robot, the use frequency of the sweeping robot is higher and higher. Especially, only the robot of sweeping the floor, because it possesses the self-cleaning function, need not user's manual washing mop, cylinder etc. and is welcomed by the masses. However, problems such as sewage collection and treatment after cleaning by the intelligent sweeping robot can also be brought. In the related art, a water pump is adopted to discharge water in a sewage tank, but the sewage discharge process has the following problems: because particulate matter impurity has in the sewage, the water pump blowdown water in-process, particulate matter impurity can pass through the water pump, and particulate matter impurity can lead to the water pump to damage inefficacy.

It should be noted that the above-mentioned contents are only for assisting understanding of the technical problems solved by the present invention, and do not represent an admission that the above-mentioned contents are the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a drainage pump structure and a cleaning base station, aiming at avoiding the problem that particulate impurities in water cause damage and failure of the drainage pump when the drainage pump drains water.

To achieve the above object, the present invention provides a drain pump structure, including:

the drainage cavity is provided with a water inlet, a water outlet and a gas port;

the water inlet and the water outlet are respectively provided with the one-way valve, the one-way valve on the water inlet is communicated in one way along the direction of the drainage cavity, and the one-way valve on the water outlet is communicated in one way along the direction deviating from the drainage cavity; and

and the air source system is communicated with the air port and is used for supplying air to the air port, sucking air from the air port and adjusting the air volume of the air port.

Optionally, the air supply system includes an air port interface in communication with the air port, the air port interface switching between supplying air to the air port and aspirating air from the air port.

Optionally, the air supply system includes air pump and gas circuit switching part, the air pump is equipped with induction port and gas outlet, the gas port interface set up in gas circuit switching part, the gas port interface of gas circuit switching part with the gas port intercommunication, gas circuit switching part is kept away from the one end of gas port interface with the induction port with the gas outlet intercommunication, with the intercommunication the induction port with the gas port, perhaps the intercommunication the gas outlet with the gas port.

Optionally, the air source system includes two air pumps, one of the air pumps is provided with the air suction port, and the other air pump is provided with the air outlet.

Optionally, the air supply system includes an air chamber, a mechanical piston and a driving part, the air chamber is provided with the air port interface, the mechanical piston is arranged in the air chamber, the driving part drives the mechanical piston to move towards the direction of the air port interface, so that the air port interface supplies air to the air port, or the driving part drives the mechanical piston to move away from the direction of the air port interface, so that the air port interface sucks air from the air port.

Optionally, the mechanical piston includes to the first stroke that the gas port interface place direction removed and to keeping away from the second stroke that the gas port interface place direction removed, the drainage chamber or be connected with the snuffle valve on the air cavity room, the snuffle valve is used for adjusting first stroke with the second stroke, so that first stroke with the second stroke is different.

Optionally, the one-way valve is a duckbill valve, the outlet of the duckbill valve on the water inlet faces the water discharge chamber, and the outlet of the duckbill valve on the water outlet faces away from the water discharge chamber.

Optionally, a waterproof membrane is provided between the gas source system and the drainage chamber.

The present invention also provides a drain pump structure, including:

and the air source system is communicated with the air port, and a waterproof membrane is arranged between the air source system and the drainage cavity.

Optionally, the drain pump structure further comprises: the bolster, be equipped with the buffer chamber in the bolster, the water proof membrane sets up in the buffer chamber, with will first sub-chamber and second sub-chamber are separated into to the buffer chamber, wherein, first sub-chamber with the gas port intercommunication, the second sub-chamber with air supply system intercommunication.

Optionally, the waterproof membrane is an elastic waterproof membrane, and the waterproof membrane has a positive pressure position and a negative pressure position when elastically deformed.

Optionally, the drain pump structure still includes the snuffle valve, the snuffle valve with buffer chamber or the drainage chamber intercommunication, the snuffle valve is normally closed snuffle valve, the air supply system acts on during the buffer chamber, the snuffle valve is opened and is predetermine for a long time.

The utility model also provides a cleaning base station which comprises a cleaning system, wherein the cleaning system is provided with the drainage pump structure.

The utility model provides a draining pump structure and a cleaning base station, wherein the draining pump structure in the embodiment comprises: the drainage cavity is provided with a water inlet, a water outlet and a gas port; the water inlet and the water outlet are respectively provided with the one-way valve, the one-way valve on the water inlet is communicated in one way along the direction of the drainage cavity, and the one-way valve on the water outlet is communicated in one way along the direction deviating from the drainage cavity; and the air source system is communicated with the air port and is used for supplying air to the air port, sucking air from the air port and adjusting the air volume of the air port. Based on the air supply system can adjust the air input and the air output of the air port. The air quantity of the air port is adjusted according to the specific application scene of the drainage pump structure, so that the drained impurities cannot pass through the air source system, the service life of the air source system is prolonged, and the reliability of the air source system is improved.

Drawings

FIG. 1 is a schematic structural view of a sewage structure according to a first embodiment of the present invention;

FIG. 2 is a schematic diagram of a second embodiment of a drainage pump structure according to the present invention;

FIG. 3 is a schematic diagram of a drainage pump structure according to a third embodiment of the present invention;

FIG. 4 is a schematic diagram of a drainage pump structure according to a fourth embodiment of the present invention.

The reference numbers illustrate:

the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

For a better understanding of the above technical solutions, exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

The drain pump structure according to various embodiments of the present invention can be applied to various kinds of drain apparatuses. The present embodiment takes the sewage drainage application of the sweeping robot as an example for explanation.

The sweeping robot has a cleaning system for cleaning mops or rollers and the like. Because mop or cylinder carry out cleaning work after, can attach some particulate matter impurity, when wasing in cleaning system, particulate matter impurity falls into cleaning system. Aiming at the cleaning system, the sweeping robot is provided with a sewage discharge system, and the sewage discharge system pumps water in the cleaning system away through a pump and discharges the water to a sewage tank, a drainage channel or a floor drain. Sewage systems typically use water pumps as the power drain. When impurities in the sewage pass through the water pump, the pump body is easily damaged, and the water pump is caused to lose efficacy.

The drainage pump structure provided by the utility model can prevent impurities in drainage water from entering the water pump and damaging the pump body.

In an embodiment, referring to fig. 1, the drainage pump structure 100 includes:

the drainage device comprises a drainage cavity 10, wherein the drainage cavity 10 is provided with a water inlet 11, a water outlet 12 and an air port 13;

the one-way valve 20 is arranged at each of the water inlet 11 and the water outlet 12, the one-way valve 20 on the water inlet 11 flows in one direction along the drainage cavity 10, and the one-way valve 20 on the water outlet 12 flows in one direction along the direction departing from the drainage cavity 10; and

and the air source system 30 is communicated with the air port 13, and the air source system 30 is used for supplying air to the air port 13, sucking air from the air port 13 and adjusting the air volume of the air port 13.

In this embodiment, the drainage pump structure 100 is provided with a drainage cavity 10 for storing the sewage when the sewage is pumped. And drainage chamber 10 is provided with gas port 13, combines to set up in water inlet 11 and delivery port 12 to be check valve 20, and air supply system 30 passes through gas port 13 to during drainage chamber 10 air feed, gaseous can not be followed check valve 20 in the water inlet 11 discharges, and atmospheric pressure can only be with the sewage in the drainage chamber 10 toward delivery port 12 extrusion to follow sewage delivery port 12 discharges. When the air source system 30 further sucks air from the drainage cavity 10 through the air port 13, external air cannot enter the drainage cavity 10 from the check valve 20 of the water outlet 12, air pressure in the drainage cavity 10 is reduced, and external water pressure enables water pressure in the cleaning system to flow to the water inlet 11 so as to pump sewage in the cleaning system into the drainage cavity 10. In the whole drainage process, water does not pass through the air source system 30, so that particles in the water cannot enter the body of the air source system 30.

Optionally, the air port 13 is located at the upper end of the drainage chamber 10, remote from the water outlet 12. Only after the water in the water discharge chamber 10 is full, water is possible to enter the air supply system 30 through the air port 13.

In some application scenarios, the water inlet amount of the drainage pump is larger than the water outlet amount, and when the water in the drainage chamber 10 cannot be drained in time, the water in the drainage chamber 10 is easily full, and then enters the air source system 30, and the body is also damaged. In other application scenarios, air supply system 30 has a high lift demand, and need provide great pressure to gas port 13 and just can discharge the sewage in drainage chamber 10, if the water in drainage chamber 10 can not discharge completely, accumulate many after, also can fill up drainage chamber 10, and then get into air supply system 30, still lead to unable gas port 13 to the air feed of drainage chamber 10, lead to the drainage failure.

Based on this, the air supply system 30 of the present embodiment can adjust the amount of air input and output of the air ports 13. The air volume of the air port 13 is adjusted according to the specific application scenario of the drain pump structure 100, so as to ensure that the impurities in the sewage do not pass through the air source system 30, prolong the service life of the air source system 30 and improve the reliability of the air source system 30. For example, in order to completely drain the sewage in the drainage chamber 10, the air supply system 30 adjusts the air amount of the air ports 13 so that the air inlet amount of the air ports 13 is smaller than the air outlet amount. As in some high lift scenarios, in order to enable sewage to be discharged from the drainage chamber 10, the air supply system 30 adjusts the air volume of the air ports 13 such that the air volume of the air ports 13 is greater than the air volume.

Alternatively, the present embodiment can adjust the air volume of the air port 13 by controlling the start-up time of the air supply system 30. If the air pump 32 of the air supply system 30 is rotated in the forward direction, air is supplied to the air port 13, and air is sucked from the air port 13 in the reverse direction. The air quantity of the air port 13 is adjusted by controlling the forward and reverse rotation time of the air pump 32.

Optionally, the air supply system 30 includes a port interface 31, the port interface 31 being in communication with the port 13, the port interface 31 switching between supplying air to the port 13 and inhaling air from the port 13.

Optionally, the manner in which the air supply system 30 effects switching between supplying air to the port 13 and drawing air from the port 13 includes, but is not limited to, the following enumerated embodiments:

in an embodiment, referring to fig. 2, the air source system 30 includes an air pump 32 and an air path switching portion 33, the air pump 32 has an air suction port and an air outlet, the air port interface 31 is disposed on the air path switching portion 33, the air port interface 31 of the air path switching portion 33 is communicated with the air port 13, and an end of the air path switching portion 33 away from the air port interface 31 is communicated with the air suction port and the air outlet to communicate the air suction port with the air port 13 or communicate the air outlet with the air port 13.

In this embodiment, the air path switching unit 33 is used for transmitting air, and when the air pump 32 discharges air through the air outlet, the air path switching unit 33 inputs air into the drainage chamber 10 through the air port 13. When the air pump 32 sucks air through the air suction port, the air path switching part 33 may input air in the water discharge chamber 10 into the air pump 32 through the air port 13, so as to reduce the air pressure in the water discharge chamber 10, and allow sewage in the cleaning system to enter the water discharge chamber 10. In this embodiment, the air passage switching unit 33 switches the air suction and air suction of the air pump 32 to the air port 13, thereby reducing the number of the air ports 13 of the drain chamber 10.

Alternatively, the air passage switching part 33 may be a member having a cavity. In some embodiments, the air supply system 30 includes two air pumps 32, wherein one of the air pumps 32 is provided with the air inlet, and the other air pump 32 is provided with the air outlet. The air suction port and the air outlet port of the two air pumps 32 are both communicated with the air path switching part 33. When air needs to be supplied to the drainage cavity 10, the air pump 32 with an air outlet is started, and air is supplied to the drainage cavity 10 through the air path switching part 33. When air needs to be sucked from the drain chamber 10, an air pump 32 having an air suction port is activated to draw air from the drain chamber 10 through the air passage switching portion 33. Wherein the air amount of the air port 13 is adjusted by adjusting the start-up time of the two air pumps 32.

Alternatively, in some embodiments, the air path switching part 33 is provided with a switchable flow path inside, and the air path switching part 33 switches and communicates between the air inlet and the air outlet of the air pump 32 by switching the flow path. When the first flow paths in the air path switching unit 33 are connected, the inlet of the air path switching unit 33 is connected to the outlet of the air pump 32, and when the second flow paths in the air path switching unit 33 are connected, the inlet of the air path switching unit 33 is connected to the air inlet of the air pump 32. During this time, the port interface 31 of the air passage switching unit 33 is always in communication with the port 13. The present embodiment is based on the air path switching portion 33, which switches the air supply system 30 between supplying air to the air port 13 and sucking air from the air port 13.

Alternatively, as in other embodiments, the air supply system 30 is not provided with the air path switching part 33. Instead, the air source system 30 includes two air pumps 32, wherein one of the air pumps 32 is provided with the air inlet, and the other air pump 32 is provided with the air outlet. Correspondingly, the drainage chamber 10 includes two air ports 13, one air port 13 is communicated with the suction port, and the other air port 13 is communicated with the air outlet. The air pump 32 is switched between air supply and air suction by controlling the operation of the different air pumps 32. The air quantity of the air port 13 is adjusted by controlling the starting time of the air pump 32 to be different, so that the air outlet quantity and the air inlet quantity of the air port 13 are different.

Alternatively, in another embodiment, referring to fig. 3, the air source system 30 includes an air chamber 34, a mechanical piston 35 and a driving portion 36, the air chamber 34 is provided with the air port interface 31, the mechanical piston 35 is disposed in the air chamber 34, and the driving portion 36 drives the mechanical piston 35 to move toward the direction of the air port interface 31, so that the air port interface 31 supplies air to the air port 13, or the driving portion 36 drives the mechanical piston 35 to move away from the direction of the air port interface 31, so that the air port interface 31 sucks air from the air port 13.

Alternatively, the driving part 36 may be the air pump 32, or may be another power component.

Air port interface 31 of air cavity 34 with the gas port 13 intercommunication of drainage chamber 10, mechanical piston 35 is in when removing in the air cavity 34, to gas port 13 air feed, or follow gas port 13 inhales, realizes discharging the water in the drainage chamber 10, perhaps takes out the sewage in the cleaning system in the drainage chamber 10.

Alternatively, the present embodiment achieves the purpose of adjusting the air volume of the air port 13 by controlling the moving stroke of the mechanical piston 35. If the mechanical piston 35 includes a first stroke moving toward the air port 31 and a second stroke moving away from the air port 31, an air release valve (60 shown in fig. 4) is connected to the drain cavity 10 or the air chamber, and the air release valve is used to adjust the first stroke and the second stroke so that the first stroke and the second stroke are different. If in the process of drawing water, the air release valve is opened, and the effective second stroke is smaller than the first stroke, so that the air outlet quantity of the air port 13 is small, and high-lift drainage can be realized when next drainage is carried out. If in the drainage process, the air escape valve is opened, and the effective first stroke is less than the second stroke, so that the air outlet quantity of the air port 13 is greater than the air inlet quantity of the air port 13, and high suction lift water pumping is realized.

Optionally, the check valve 20 in the embodiment of the present invention is a duckbill valve, an outlet of the duckbill valve on the water inlet 11 faces the water discharge chamber 10, and an outlet of the duckbill valve on the water outlet 12 faces away from the water discharge chamber 10. Optionally, the one-way valve includes, but is not limited to, the duckbill valve, and the one-way valve may be of other configurations.

The duckbill valves are all installed positively. I.e. the outlets of the duckbill valves on the inlet 11 and outlet 12 are facing the same, the outlets of the duckbill valves both facing the drainage side.

Optionally, a waterproof membrane 40 is disposed between the air supply system 30 and the drainage chamber 10 in this embodiment, and the waterproof membrane 40 may be disposed in the air port 13 or in the air port interface 31 of the air supply system 30. In the embodiment, the waterproof membrane 40 is arranged between the air source system 30 and the drainage cavity 10, so that water is further prevented from flowing back into the air source system 30, and a further waterproof effect is achieved.

Alternatively, one of the structural embodiments of the waterproof membrane 40 may refer to the embodiment shown in fig. 4 below.

Based on the above-mentioned problem that the pump body is easily damaged when the impurities in the sewage pass through the water pump, resulting in the failure of the water pump, the present invention further provides another embodiment of the drain pump structure 100, referring to fig. 4, the drain pump structure 100 includes:

and the air source system 30 is communicated with the air port 13, and a waterproof membrane 40 is arranged between the air source system 30 and the drainage cavity 10.

In this embodiment, the drainage pump structure 100 is provided with a drainage cavity 10 for storing the sewage when the sewage is pumped. And drainage chamber 10 is provided with gas port 13, combines to set up in water inlet 11 and delivery port 12 to be check valve 20, and air supply system 30 passes through gas port 13 to during drainage chamber 10 air feed, gaseous can not be followed check valve 20 in the water inlet 11 discharges, and atmospheric pressure can only be with the sewage in the drainage chamber 10 toward delivery port 12 extrusion to follow sewage delivery port 12 discharges. When the air source system 30 further sucks air from the drainage cavity 10 through the air port 13, external air cannot enter the drainage cavity 10 from the check valve 20 of the water outlet 12, air pressure in the drainage cavity 10 is reduced, and external water pressure enables water pressure in the cleaning system to flow to the water inlet 11 so as to pump sewage in the cleaning system into the drainage cavity 10. In-process of whole blowdown water, sewage all does not pass through air supply system 30, so, the particulate matter in the sewage can not enter this internal to air supply system 30.

Optionally, the air port 13 is located at the upper end of the drainage chamber 10, remote from the water outlet 12. Only after the water in the drainage chamber 10 is full, sewage can enter the air supply system 30 through the air port 13.

In order to further enhance the waterproof effect and protect the life of the air supply system 30, the present embodiment is provided with a waterproof membrane 40 between the air supply system 30 and the drainage chamber 10. Alternatively, the waterproof membrane 40 may be disposed in the air port interface 31 of the air supply system 30 or in the air port 13 to prevent water or impurities in the drainage chamber 10 from entering the air supply system 30 and damaging the air supply system 30.

Alternatively, the waterproof membrane 40 may have a poor waterproof effect if the sewage flows backward, and thus, in some embodiments, it is necessary to physically isolate the air supply system 30 from the drain chamber 10. The drain pump structure 100 further includes: buffer 50, be equipped with buffer chamber 51 in the buffer 50, waterproof membrane 40 sets up in the buffer chamber 51, in order with buffer chamber 51 separates into first subchamber and second subchamber, wherein, first subchamber with gas port 13 intercommunication, the second subchamber with air supply system 30 intercommunication.

Optionally, the waterproof membrane 40 is located on a side adjacent to the air supply system 30.

The buffer chamber 51 is arranged, and when sewage flows backwards, more water-resisting spaces are provided for the waterproof membrane 40 based on the buffer chamber 51.

Optionally, the buffer member 50 is composed of a sealed housing, the inner cavity of the housing is the buffer chamber 51, and the waterproof film 40 is disposed on the inner wall of the buffer chamber 51 and arranged along the direction perpendicular to the water flow direction. Wherein the first sub-chamber is larger than the second sub-chamber, so that the buffer space for water is larger.

Optionally, the waterproof membrane 40 is an elastic waterproof membrane 40, and the waterproof membrane 40 has a positive pressure position b and a negative pressure position b when elastically deformed. When the air supply system 30 supplies air to the drainage cavity 10, positive pressure is provided to the waterproof membrane 40, and at this time, the waterproof membrane 40 moves to the positive pressure position b under the positive pressure action of the air supply system 30. When the air source system 30 sucks air from the drainage cavity 10, negative pressure is provided to the waterproof membrane 40, and the waterproof membrane 40 moves to the negative pressure position b under the action of the negative pressure of the air source system 30. The waterproof membrane 40 is an elastic waterproof membrane 40, which can prevent the waterproof membrane 40 from influencing the normal air suction and supply of the air source system 30.

Optionally, in a further embodiment, the drainage pump structure 100 further includes an air release valve 60, the air release valve 60 is communicated with the buffer chamber 51 or the drainage chamber 10, the air release valve 60 is a normally closed air release valve, when the air source system 30 acts on the buffer chamber 51, the air release valve 60 is opened for a preset time, so that the air source system 30 is in idle running in the preset time.

The air release valve 60 is an electronic valve, the air release valve 60 has an energized state and a non-energized state, in the energized state, an air inlet of the air release valve 60 is communicated with an air outlet of the air release valve 60, and external air can enter the buffer chamber 51 through the air outlet of the air release valve 60. In the non-energized state, the air inlet of the air release valve 60 is not communicated with the air outlet of the air release valve 60, and the outside air cannot enter the buffer chamber 51 through the air outlet of the air release valve 60. The air release valve 60 is not energized in a normal state, that is, the air release valve 60 is a normally closed air release valve.

Air supply system 30 acts on during buffer chamber 51, through opening of snuffle valve 60, can adjust air supply system 30 is right the effect size of drainage chamber 10 realizes the adjustment to the tolerance of the gas port 13 of drainage chamber 10, and then adjusts the inflow or the displacement of drainage chamber 10.

Such as in some applications where a high head is desired for the drain pump structure 100: the air source system 30 is used for pumping air from the drainage cavity 10, and in the process of pumping water from the drainage cavity 10, the waterproof membrane 40 moves towards the air source system 30, and when the waterproof membrane moves to a first preset position, the air release valve 60 is opened. The buffer chamber 51 sucks gas from the air release valve 60, and the water pumping of the water discharge chamber 10 is stopped. The waterproof membrane 40 continues to move to the negative pressure position a in the direction of the air source system 30 under the action of the air source system 30, so that the air source system 30 operates in an idle state between the first preset position and the negative pressure position a. When water is drained, the air source system 30 supplies air to the drainage cavity 10, and the waterproof membrane 40 moves to the positive pressure position b towards the drainage cavity 10 to drain the water in the drainage cavity 10.

In the water pumping process, the air source system 30 operates in a no-load mode between the first preset position and the negative pressure position a, in the water draining process, the air source system 30 operates in a load mode from the negative pressure position a to the positive pressure position b, and the load stroke in the water pumping process is smaller than that in the water draining process, so that the water draining process meets the requirement of high-lift water draining.

As in some applications where a high suction head is desired for the drain pump structure 100: when the drainage is performed, the air source system 30 supplies air to the drainage cavity 10, when the waterproof membrane 40 moves to the second preset position toward the drainage cavity 10, the air release valve 60 is opened, the air provided by the air source system 30 is discharged from the air release valve 60, and the drainage of the drainage cavity 10 is stopped. The waterproof membrane 40 continues to move to the air exhaust cavity 10 to the positive pressure position b under the action of the air source system 30, so that the air source system 30 operates in an idle state between the second preset position and the positive pressure position b. When the water is pumped next time, in the process that the air source system 30 pumps the water from the drainage cavity 10, the waterproof membrane 40 moves to the negative pressure position b in the direction of the air source system 30, and the water is pumped into the drainage cavity.

In the drainage process, the air source system 30 operates in a no-load mode between the second preset position and the positive pressure position b, and in the pumping process, the air source system 30 operates in a load mode from the positive pressure position b to the negative pressure position a, and the load stroke in the drainage process is smaller than that in the pumping process, so that the pumping process meets the requirement of high suction lift pumping.

Alternatively, the release valve 60 is opened for a preset period of time and then closed.

When the air source system 30 provides positive pressure to the buffer chamber, the air release valve 60 is closed, and the waterproof membrane 40 moves to the positive pressure position b, so as to perform positive pressure drainage on the drainage cavity 10. When air supply system 30 provides the negative pressure for the cushion chamber, release valve 60 opens the certain period, waterproofing membrane 40 will move extremely negative pressure position b carries out the negative pressure to water drainage chamber 10 and absorbs water, nevertheless because through release valve 60 inhales the atmosphere of certain period, and waterproofing membrane 40 is during to negative pressure position b, and the effect when the effect will be less than the malleation. Therefore, when the next positive pressure work is done, the sewage can be drained completely, and a larger lift is realized.

Alternatively, in this embodiment, the ratio of positive and negative pressures applied to the air supply system 30 can be adjusted by the opening time of the release valve 60.

Alternatively, in this embodiment, the air supply system 30 may be the air supply system 30 in the above embodiments of fig. 1 to 3, and the air supply system 30 combines the waterproof membrane 40 and the buffer 50 in this embodiment to achieve better waterproof effect and drainage effect.

Alternatively, in this embodiment, the air path switching part 33 of the air source system 30 may be composed of at least two electromagnetic valves, wherein one of the electromagnetic valves communicates the air outlet of the air pump 32 and the air port 13 of the water drainage chamber 10, and the other electromagnetic valve communicates the air suction port of the air pump 32 and the air port 13 of the water drainage chamber 10. The air inlet type of the air port 13 is controlled by controlling the on-off of different electromagnetic valves. The adjustment of the air quantity of the air port 13 is realized by controlling the electromagnetic valve to be electrified for different time lengths.

Based on the drainage pump structure 100, the embodiment of the present invention further provides a cleaning base station, where the cleaning base station includes a cleaning system, and the drainage pump structure 100 is provided in the cleaning system according to the above embodiments.

Optionally, the water inlet 11 of the drain pump structure 100 is communicated with the washing system, and the drain pump structure 100 is used for draining sewage in the washing system to a drain or a floor drain.

Clean basic station of this embodiment is based on adopting 100 drain water of drain pump structure, the interior sewage of clean basic station can in time effectual discharge, and the life of clean basic station is longer, and stability is higher.

It should be noted that the above is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structures or equivalent flow transformations made by using the contents of the specification and the drawings, or applied directly or indirectly to other related technical fields, are included in the scope of the present invention.

Claims

1. A drain pump structure, comprising:

2. The sump pump arrangement of claim 1, wherein the air supply system includes an air port interface in communication with the air port, the air port interface switching between supplying air to the air port and drawing air from the air port.

3. The drain pump structure of claim 2, wherein the air source system includes an air pump and an air path switching portion, the air pump has an air inlet and an air outlet, the air port is disposed in the air path switching portion, the air port of the air path switching portion is communicated with the air port, and an end of the air path switching portion away from the air port is communicated with the air inlet and the air outlet to communicate the air inlet with the air port or communicate the air outlet with the air port.

4. The drain pump structure of claim 3, wherein the air source system comprises two air pumps, one of the air pumps is provided with the air inlet, and the other air pump is provided with the air outlet.

5. The drain pump structure of claim 2, wherein the air source system comprises an air chamber, a mechanical piston, and a driving portion, the air chamber is provided with the air port, the mechanical piston is disposed in the air chamber, the driving portion drives the mechanical piston to move towards the air port so as to supply air to the air port, or the driving portion drives the mechanical piston to move away from the air port so as to suck air from the air port.

6. The drain pump structure of claim 5, wherein the mechanical piston includes a first stroke moving toward the air port and a second stroke moving away from the air port, and an air release valve is connected to the drain chamber or the air chamber for adjusting the first stroke and the second stroke so that the first stroke and the second stroke are different.

7. The sump pump structure of any of claims 1-6, wherein the one-way valve is a duckbill valve, an outlet of the duckbill valve at the water inlet facing the drain chamber, and an outlet of the duckbill valve at the water outlet facing away from the drain chamber.

8. Drain pump arrangement according to any of the claims 1-6, characterized in that a water-proof membrane is arranged between the air supply system and the drain chamber.

9. A drain pump structure, comprising:

10. The drain pump arrangement of claim 9, further comprising: the bolster, be equipped with the buffer chamber in the bolster, the water proof membrane sets up in the buffer chamber, with will first sub-chamber and second sub-chamber are separated into to the buffer chamber, wherein, first sub-chamber with the gas port intercommunication, the second sub-chamber with air supply system intercommunication.

11. A drain pump arrangement according to claim 10, wherein the membrane is an elastic membrane, the membrane being elastically deformable to have a positive pressure position and a negative pressure position.

12. The drain pump structure of claim 10, further comprising a release valve, the release valve being in communication with the buffer chamber or the drain chamber, the release valve being a normally closed release valve, the release valve being open for a predetermined length of time when the air source system acts on the buffer chamber.

13. A washing base station, characterized in that it comprises a washing system provided with a drain pump arrangement according to any of claims 1-12.