CN220800898U

CN220800898U - Drainage structure and cleaning equipment

Info

Publication number: CN220800898U
Application number: CN202322183983.4U
Authority: CN
Inventors: 黄平
Original assignee: Shenzhen 3irobotix Co Ltd
Current assignee: Shenzhen 3irobotix Co Ltd
Priority date: 2023-08-14
Filing date: 2023-08-14
Publication date: 2024-04-19
Anticipated expiration: 2033-08-14

Abstract

The utility model provides a drainage structure and cleaning equipment. The drainage structure comprises a cavity, a water inlet, a water outlet and a vent arranged between the water inlet and the water outlet; a drive assembly including a drive motor and a drive member configured to be driven by the drive motor to reciprocate in a direction toward the vent; the elastic waterproof membrane is arranged at the air vent and positioned in the movement path of the driving piece, the driving piece is contacted with the elastic waterproof membrane in the reciprocating movement process, and the elastic waterproof membrane is extruded or stretched, so that the elastic waterproof membrane has a compression state and a stretching state. Compared with the prior art, the drainage structure changes the volume of the cavity by changing the shape of the elastic waterproof membrane in the drainage process, and meanwhile, the elastic waterproof membrane is directly arranged at the air vent of the cavity, so that the drainage structure can be prevented from being blocked or wound by hair in the drainage process.

Description

Drainage structure and cleaning equipment

Technical Field

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

Background

Along with the acceleration of the work rhythm of people and the continuous improvement of life demands, people are more and more used to replace the manual work to accomplish work such as sweeping, dust absorption, mopping, wherein novel intelligent sweeping and mopping integrated robot is especially popular among people.

Cleaning devices such as: sweeping robots, floor washing machines and the like have the functions of temporarily collecting, storing, automatically discharging and the like sewage, sewage is discharged to a sewer through a drainage pump in cleaning equipment, and the use experience of users is well improved. But the drainage pipeline inside the existing cleaning equipment is complex in structure, and the water pumping and draining are realized by mostly adopting the cooperation of an air pump, so that the cost is high. Moreover, when the sewage is discharged, the sewage is directly discharged through the water pump, and the water pump is blocked or wound by hair after long-time use, so that the water discharging effect is affected.

In view of the foregoing, it is desirable to provide a drainage structure and a cleaning apparatus to solve the above-mentioned problems.

Disclosure of utility model

The utility model aims to provide a drainage structure with simple structure and high drainage efficiency.

To achieve the above object, the present utility model provides a drainage structure comprising:

The cavity comprises a water inlet, a water outlet and a vent arranged between the water inlet and the water outlet;

a drive assembly including a drive motor and a drive member configured to be driven by the drive motor to reciprocate in a direction toward the vent;

The elastic waterproof membrane is arranged at the air vent and positioned in the movement path of the driving piece, the driving piece is contacted with the elastic waterproof membrane in the reciprocating movement process, and the elastic waterproof membrane is extruded or stretched, so that the elastic waterproof membrane has a compression state and a stretching state.

As a further improvement of the present utility model, the elastic waterproof membrane is fixedly installed at the vent hole and is in sealing connection with the vent hole, the driving member is fixedly connected with the elastic waterproof membrane, and the driving member changes the state of the elastic waterproof membrane during the reciprocating movement so as to switch the elastic waterproof membrane between the compressed state and the stretched state.

As a further improvement of the utility model, the driving piece comprises a swinging rod, the swinging rod is provided with a rotation center, and the driving motor drives the swinging rod to do reciprocating circular arc motion by taking the rotation center as an axle center.

As a further improvement of the utility model, the drainage structure comprises a connecting frame, the connecting frame is arranged parallel to the cavity, one end of the connecting frame is provided with a swing rod connecting part, and the swing rod is connected with the swing rod connecting part and performs reciprocating circular arc movement by taking the swing rod connecting part as an axle center.

As a further improvement of the utility model, the movement path of the driving piece is a straight line, the projection of the driving piece in the direction towards the air vent is positioned in the elastic waterproof membrane, and the driving piece is driven by the driving motor to reciprocate towards or away from the air vent in the horizontal direction.

As a further improvement of the utility model, the drainage structure comprises an outer cover, one end of the outer cover is connected with the ventilation opening, a guide groove is arranged in the outer cover, and the driving piece comprises a guide post which is inserted in the guide groove and can slide along the guide groove.

As a further improvement of the utility model, the driving assembly further comprises an eccentric device, the driving motor is rotationally connected with the eccentric device, the eccentric device is at least partially inserted into the driving piece, and the driving piece is driven to reciprocate by the eccentric device.

As a further improvement of the utility model, the driving piece comprises a bar-shaped hole and a push rod, the bar-shaped hole is rotationally connected with the driving motor through an eccentric device, the push rod is arranged to extend to one side of the cavity perpendicular to the bar-shaped hole, and the push rod is used for contacting with the elastic waterproof membrane.

As a further improvement of the utility model, the water draining structure further comprises a first one-way valve and a second one-way valve, wherein the first one-way valve is arranged at the water inlet, the second one-way valve is arranged at the water outlet, and the installation directions of the first one-way valve and the second one-way valve are the same and are configured to enable water flow to flow from the water inlet to the water outlet.

It is a further object of the present utility model to provide a cleaning device comprising the above drain structure.

To achieve the above object, the present utility model provides a cleaning apparatus including the above drain structure.

The beneficial effects of the utility model are as follows: compared with the prior art, the water draining assembly is simple in structure, the water inlet is communicated with the water outlet through the cavity, the elastic waterproof membrane is arranged on one side of the cavity, the state of the elastic waterproof membrane is changed by the reciprocating motion of the driving piece in the driving assembly to change the volume of the cavity, the pressure in the cavity is changed along with the change of the volume, the functions of sucking liquid into the cavity from the outside and discharging the liquid from the cavity are realized, the transmission efficiency is high, and the structure is more stable; and the elastic waterproof membrane is arranged at the air vent of the cavity, so that the drainage structure can be prevented from being blocked or wound by hair in the pollution discharge process even if the drainage structure is used for a long time, frequent maintenance is not needed, and the user experience is better.

Drawings

Fig. 1 is a front view of a drainage structure according to a preferred embodiment of the present utility model.

Fig. 2 is a rear view of fig. 1.

Fig. 3 is an exploded view of fig. 1.

Fig. 4 is a perspective view of the driving lever of fig. 1.

Fig. 5 is a perspective view of the elastic film of fig. 1.

Fig. 6 is a cross-sectional view of fig. 1.

Fig. 7 is a cross-sectional view of the elastic waterproof membrane of fig. 1 in a stretched state.

Fig. 8 is a cross-sectional view of the elastic waterproofing membrane of fig. 1 in a compressed state.

Fig. 9 is a front view of a drainage structure of another preferred embodiment of the present utility model.

Fig. 10 is an exploded view of fig. 9.

Fig. 11 is a perspective view of the driving lever of fig. 9.

Fig. 12 is a perspective view of the outer cover of fig. 9.

Fig. 13 is a cross-sectional view of the elastic waterproof membrane of fig. 9 in a stretched state.

Fig. 14 is a cross-sectional view of the elastic waterproof membrane of fig. 9 in a stretched state.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be described in detail with reference to the accompanying drawings and specific embodiments.

In this case, in order to avoid obscuring the present utility model due to unnecessary details, only the structures and/or processing steps closely related to the aspects of the present utility model are shown in the drawings, and other details not greatly related to the present utility model are omitted.

In addition, it should be further noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Referring to fig. 1 to 14, a drainage structure 100 according to a preferred embodiment of the present utility model is shown, and the drainage structure 100 can be applied to a cleaning device (not shown) or a base station (not shown), and the cleaning device can be a floor scrubber, a sweeper or other cleaning devices requiring water pumping and drainage in the market.

The drainage structure 100 includes:

A cavity 30 including a water inlet 10, a water outlet 20, and a vent 31 disposed between the water inlet 10 and the water outlet 20;

A drive assembly 60 including a drive motor 64 and a drive member 61, the drive member 61 configured to be driven by the drive motor 64 to reciprocate in a direction toward the vent 31;

The elastic waterproof membrane 40 is disposed at the vent 31 and is located in the movement path of the driving piece 61, and the driving piece 61 contacts with the elastic waterproof membrane 40 during the reciprocating movement and presses or stretches the elastic waterproof membrane 40 so that the elastic waterproof membrane 40 has a compressed state and a stretched state.

The elastic waterproof membrane 40 is extruded/stretched by the reciprocating motion of the driving member 61 to change the volume of the cavity 30, when the driving member 61 moves towards the direction close to the air vent 31 of the cavity 30, the volume of the cavity 30 becomes smaller when the elastic waterproof membrane 40 is extruded, the air pressure of the closed space in the cavity 30 is enhanced, the water inlet 10 is in a closed state, the water outlet 20 is opened, and the temporarily stored liquid in the cavity 30 flows out through the water outlet 20; when the driving member 61 moves in a direction away from the air vent 31 of the cavity 30, the volume of the cavity 30 is increased when the elastic waterproof membrane 40 is stretched, the air pressure in the closed space of the cavity 30 is reduced, the water outlet 20 is in a closed state, the water inlet 10 is opened, external liquid is sucked into the cavity 30, and the driving member 61 rapidly reciprocates to complete rapid liquid sucking and discharging processes.

The elastic waterproof membrane 40 is fixedly installed at the vent port 31 and is hermetically connected to the vent port 31, and the driving member 61 changes the state of the elastic waterproof membrane 40 during the reciprocation to switch the elastic waterproof membrane 40 between the compressed state and the stretched state.

In this embodiment, the driving member 61 is fixedly connected to the elastic waterproof membrane 40, and in other embodiments, the driving member 61 may compress or stretch the elastic waterproof membrane 40 by magnetic attraction, so that the driving member 61 contacts the elastic waterproof membrane 40 when reciprocating.

Meanwhile, the elastic waterproof membrane 40 is fixedly arranged at the air vent 31 of the cavity 30, the driving piece 61 only reciprocates to squeeze/stretch the elastic waterproof membrane 40, and the connection position of the elastic waterproof membrane 40 and the air vent 31 is not changed, so that even if the elastic waterproof membrane is used for a long time, sewage (including impurities such as particles and hair) in the cavity 30 cannot enter into a space where the driving piece 61 is positioned, the sewage directly flows from the water inlet 10 to the water outlet 20 of the cavity 30, the drainage structure 100 is prevented from being blocked or wound by the hair in the drainage process, the drainage effect is improved, the service life of the drainage structure 100 is prolonged, and the use experience of a user is improved.

As shown in fig. 1 to 8, in some embodiments, the driving member includes a swing link 611, where the swing link 611 is provided with a rotation center 615, and the swing link 611 performs a reciprocating circular arc motion with the rotation center 615 as an axis. The driving motor 64 drives the swing rod 611 to perform reciprocating circular arc motion with the rotation center 615 as an axis, and the motion path of the driving member 61 is circular arc.

The driving piece 61 moves in a swinging way through the swinging rod 611, the length of the swinging rod 611 can be set according to the actual structure and needs, the swinging rod 611 connected with the connecting part of the swinging rod 611 on the connecting frame 80 is more energy-saving in the use process, the driving motor 64 can drive the driving piece 61 to swing in a larger amplitude only by small rotation, and the swinging speed of the driving piece 61 can be controlled more accurately through the swinging movement way, so that the flow rate in the cavity 30 of the drainage structure 100 is controlled better, and the working efficiency of the drainage structure 100 is controlled.

The drainage structure 100 comprises a connecting frame 80, wherein the connecting frame 80 is arranged parallel to the cavity 30, one end of the connecting frame 80 is provided with a swing rod connecting part, and a swing rod 611 is connected with the swing rod connecting part and performs reciprocating circular arc motion by taking the swing rod connecting part as an axis.

The driving member 61 includes a bar hole 612 and a push rod 616, the bar hole 612 is disposed at one end of the swing rod 611 away from the rotation center 615, the push rod 616 extends to one side of the cavity 30 perpendicular to the bar hole 612, and the push rod 616 is used for contacting with the elastic waterproof membrane 40.

In some embodiments, a mounting groove is provided at the vent 31 of the cavity 30, the elastic waterproof membrane 40 is mounted in the mounting groove and is in sealing connection with the mounting groove, the elastic waterproof membrane 40 is provided with a first connecting portion 41, the first connecting portion 41 is configured to be fixedly connected with a second connecting portion 613 of the driving member 61, the elastic waterproof membrane 40 is directly mounted in the mounting groove, and the mounting groove is preferably circular, and the area of the elastic waterproof membrane 40 is larger than the inner diameter of the cavity 30, so that the driving member 61 does not need to shake too much, and the size of the volume of the cavity 30 can be changed.

Meanwhile, the first connecting part 41 is arranged in the middle of the elastic waterproof membrane 40, the second connecting part 613 is arranged on the driving piece 61, the elastic waterproof membrane 40 and the driving piece 61 are fixedly connected through the assembly of the first connecting part 41 and the second connecting part 613, the driving piece 61 can better drive the elastic waterproof membrane 40 to deform, compared with the situation that the elastic waterproof membrane 40 is directly adhered with the driving piece 61, the elastic waterproof membrane 40 can be better protected through the arrangement, the elastic waterproof membrane 40 is prevented from being damaged due to repeated touch extrusion, the service life of the elastic waterproof membrane 40 is prolonged, the first connecting part 41 or the second connecting part 613 is only required to be replaced during replacement and maintenance, and the maintenance and use cost is reduced.

As shown in fig. 9 to 14, in some embodiments, the movement path of the driving member 61 is a straight line, the projection of the driving member 61 in the direction toward the vent 31 is located in the elastic waterproof membrane 40, and the driving member 61 reciprocates toward or away from the vent 31 in the horizontal direction by the driving of the driving motor 64.

The drainage structure comprises an outer cover 50, one end of the outer cover 50 is connected with the air vent 31, a guide groove 51 is arranged in the outer cover 50, the driving piece 61 comprises a guide column 614, and the guide column 614 is inserted in the guide groove 51 and can slide along the guide groove 51. Through the outer cover 50, the driving piece 61 can be better protected, and damage caused by collision of the driving piece 61 by other structural parts in the reciprocating motion process is avoided. Meanwhile, the guide groove 51 is arranged in the outer cover 50, the guide post 614 of the driving piece 61 is arranged in the guide groove 51 and can slide along the guide groove 51, the driving piece 61 and the outer cover 50 are assembled by arranging the guide post 614 and the guide groove 51, the driving piece 61 cannot deviate horizontally, the driving assembly 60 is more stable and reliable, the eccentric device 62 rotates in the process of extruding or stretching the elastic waterproof film 40, the protruding portion 621 on the eccentric device 62 moves vertically relative to the strip-shaped hole 612, meanwhile, the driving piece 61 can only move horizontally along the guide groove 51 due to the limiting effect of the guide groove 51, the transmission efficiency of the whole structure is high, the occupied space is small, and the assembly and the disassembly are more convenient and quick.

The driving assembly 60 further includes an eccentric device 62, the driving motor 64 is rotationally connected with the eccentric device 62, the eccentric device 62 is also connected with the driving member 61, and the driving rod is driven by the eccentric device 62 to reciprocate, in this embodiment, the eccentric device 62 may be an eccentric wheel, and in other embodiments, other structural members may be used, which is not limited in this utility model.

The driving piece 61 is provided with a bar hole 612, the eccentric device 62 is provided with a protruding part 621, the protruding part 621 is inserted into the bar hole 612, the driving rod is driven to reciprocate along the direction perpendicular to the extending direction of the bar hole 612 by the cooperation of the eccentric device 62 and the bar hole 612, the protruding part 621 on the eccentric device 62 can displace relative to the bar hole 612 and drive the driving piece 61 to reciprocate by utilizing the rotation of the driving motor 64, the extrusion and stretching of the elastic waterproof membrane 40 are realized, the structure is simple, and the assembly is also convenient.

The driving assembly 60 further comprises a tooth box 63, the driving motor 64 and the eccentric device 62 are connected with the tooth box 63, the driving motor 64 drives the eccentric device 62 to rotate through the tooth box 63, the tooth box 63 is adopted to better transmit the power of the driving motor 64 to the eccentric device 62, the rotating speed of the motor can be better controlled to control the reciprocating speed of the driving piece 61, and then the pumping and discharging speed of the drainage structure 100 is controlled.

The elastic waterproof membrane 40 is a deformable elastic tympanic membrane capable of being pressed by the driving member 61 to be elastically deformed. The elastic waterproof membrane 40 includes an annular rim 42 and an intermediate portion 43 protruding outward from the annular rim 42, a first connection portion 41 is provided at the center of the intermediate portion 43, and a second connection portion 613 is hermetically connected to the elastic waterproof membrane 40 through the first connection portion 41.

Further, the drainage structure 100 further includes a first check valve 11 and a second check valve 21, the first check valve 11 is installed at the water inlet 10, the second check valve 21 is installed at the water outlet 20, and the installation directions of the first check valve 11 and the second check valve 21 are the same, and are configured to enable water flow from the water inlet 10 to the water outlet 20. Both the first check valve 11 and the second check valve 21 can be conducted only in one direction, so as to play a role in sealing and one-way conduction. When the volume of the cavity 30 becomes smaller, the first one-way valve 11 positioned at the water inlet 10 is flushed away, liquid flows into the cavity 30 from outside, and when the volume of the cavity 30 becomes larger, the second one-way valve 21 positioned at the water outlet 20 is flushed away, and liquid flows out from the cavity 30 through the water outlet 20, so that the liquid can only flow from the water inlet 10 to the water outlet 20.

In this embodiment, the first check valve 11 and the second check valve 21 are duckbill valves, which are made of silica gel and include an annular mounting portion and a flat valve port connected to the annular mounting portion. The annular mounting portion is used for mounting the duckbill valve on the water inlet 10 and the water outlet 20, and the valve port is flat to limit the flowing direction of water flow. In other embodiments, other types of check valves may be used, as long as the check valve is provided with one-way conduction, which is not limited by the present utility model.

The operation of the drainage structure 100 of the present utility model is: the driving motor 64 drives the eccentric device 62 to rotate through the tooth box 63, the eccentric device 62 further drives the driving piece 61 to reciprocate in the direction towards the elastic waterproof membrane 40 and in the direction away from the elastic waterproof membrane 40, when the driving piece 61 moves towards the elastic waterproof membrane 40, the elastic waterproof membrane 40 is extruded, the volume of the cavity 30 is reduced, the pressure in the cavity 30 is increased, when the driving piece 61 moves to be closest to the cavity 30, the elastic waterproof membrane 40 is in a compressed state at the moment, the air pressure difference between the inside and the outside of the cavity 30 reaches a critical value, the second one-way valve 21 is flushed, and liquid in the cavity 30 flows out to the outside through the water outlet 20; when the driving member 61 moves in a direction away from the elastic waterproof membrane 40, the elastic waterproof membrane 40 rebounds, the volume of the cavity 30 becomes larger, the volume in the cavity 30 increases, the air pressure decreases, the second check valve 21 installed at the water outlet 20 remains sealed, when the driving member 61 moves furthest from the cavity 30, the elastic waterproof membrane 40 is in a stretched state at this time, the air pressure in the cavity 30 is much smaller than the air pressure of the outside, the first check valve 11 is flushed, the outside liquid is drawn into the cavity 30 through the water inlet 10, and the rapid reciprocating movement of the driving member 61 is realized to suck and discharge the liquid from the cleaning apparatus.

In summary, the drainage structure 100 of the present utility model has a simple structure, the water inlet 10 is communicated with the water outlet 20 through the cavity 30, the elastic waterproof membrane 40 is disposed at one side of the cavity 30, the state of the elastic waterproof membrane 40 is changed by the reciprocating motion of the driving member 61 in the driving assembly 60 to change the volume of the cavity 30, the pressure in the cavity 30 changes along with the change of the volume, the functions of sucking liquid into the cavity 30 from the outside and discharging liquid from the cavity 30 are realized, the transmission efficiency is high, the structure is more stable, and the elastic waterproof membrane 40 is disposed at the air vent 31 of the cavity 30, so that the drainage structure 100 can be prevented from being blocked or wound by hair in the process of draining, frequent maintenance is not required, and the user experience is better even if the drainage structure is used for a long time.

The above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and it should be understood by those skilled in the art that the technical solution of the present utility model may be modified or substituted without departing from the spirit and scope of the technical solution of the present utility model.

Claims

1. A drain structure for use in a cleaning appliance, comprising:

2. The drainage structure of claim 1, wherein the elastic waterproof membrane is fixedly installed at the vent hole and is in sealing connection with the vent hole, the driving member is fixedly connected with the elastic waterproof membrane, and the driving member changes a state of the elastic waterproof membrane during a reciprocating motion to switch the elastic waterproof membrane between a compressed state and a stretched state.

3. The drainage structure according to claim 1, wherein the driving member includes a swing link, the swing link is provided with a rotation center, and the driving motor drives the swing link to perform reciprocating circular arc movement with the rotation center as an axis.

4. The drainage structure according to claim 3, wherein the drainage structure comprises a connecting frame, the connecting frame is parallel to the cavity, one end of the connecting frame is provided with a swing rod connecting part, and the swing rod is connected with the swing rod connecting part and performs reciprocating circular arc movement by taking the swing rod connecting part as an axis.

5. The drainage structure of claim 1, wherein the movement path of the driving member is a straight line, a projection of the driving member in a direction toward the vent hole is located in the elastic waterproof membrane, and the driving member reciprocates toward or away from the vent hole in a horizontal direction by the driving motor.

6. The drain structure according to claim 1, wherein the drain structure includes an outer cover having one end connected to the vent, a guide slot being provided in the outer cover, and the driving member includes a guide post inserted in the guide slot and slidable along the guide slot.

7. The drain structure of claim 1, wherein the drive assembly further comprises an eccentric, the drive motor is rotatably coupled to the eccentric, the eccentric is at least partially inserted into the drive member, and the drive member is reciprocally moved by the eccentric.

8. The drainage structure according to claim 1, wherein the driving member comprises a bar-shaped hole and a push rod, the bar-shaped hole is rotatably connected with the driving motor through an eccentric device, the push rod is arranged perpendicularly to the bar-shaped hole and extends to one side of the cavity, and the push rod is used for contacting with the elastic waterproof membrane.

9. The drain structure according to any one of claims 1 to 8, further comprising a first check valve and a second check valve, the first check valve being mounted at the water inlet, the second check valve being mounted at the water outlet, the first check valve and the second check valve being mounted in the same direction and configured to allow water flow from the water inlet to the water outlet.

10. A cleaning apparatus, characterized in that: a drainage structure comprising any one of claims 1 to 9.