Drainage device and cleaning apparatus

Abstract

A drainage device (100) and a cleaning apparatus. The drainage device (100) comprises: a housing (1), the housing (1) comprising a water inlet (11), a flow guide channel (12) and a water outlet (13) which are communicated in sequence; a first control valve (21) located at the water inlet (11) and a second control valve (22) located at the water outlet (13); a driving assembly (4), used for producing a driving force; and a sealing compression member, one end of which is communicated with the flow guide channel (12), wherein the sealing compression member is configured to, under the driving of the driving assembly (4), drive movement and operation of the first control valve (21) and the second control valve (22) by means of its own deformation, so as to open or close the water inlet (11) and the water outlet (13). In response to the water inlet (11) being opened, a liquid outside the housing (1) flows into the flow guide channel (12) through the water inlet (11); and in response to the water outlet (13) being opened, the liquid in the flow guide channel (12) flows out of the housing (1) through the water outlet (13).

Description

Drainage devices and cleaning equipment

[0001] Cross-references to related applications

[0002] This application claims priority to Chinese patent applications Nos. 202410578465.9 and 202421010026.X, filed on May 10, 2024, the contents of which are incorporated herein by reference in their entirety as part of this disclosure. Technical Field

[0003] This invention relates to the field of drainage technology for cleaning devices, and particularly to a drainage device and cleaning equipment. Background Technology

[0004] Existing drainage systems in cleaning equipment mostly collect wastewater by adding a water tank, and then a drainage pump discharges the wastewater from the tank to the outside of the cleaning equipment through a drain outlet. However, adding a water tank often results in a large drainage system, occupying a significant amount of internal space in the cleaning equipment. At the same time, the manufacturing cost of the drainage pump is high, which also increases the overall manufacturing cost of the cleaning equipment to some extent. Therefore, a drainage system is needed to solve the above problems. Summary of the Invention

[0005] One objective of this invention is to solve the problems of high cost and large size of existing drainage devices.

[0006] To achieve the above objectives, the present invention provides a drainage device, comprising:

[0007] The shell includes an inlet, a drainage channel, and an outlet connected in sequence;

[0008] A first control valve located at the water inlet and a second control valve located at the water outlet;

[0009] Drive components are used to generate driving force;

[0010] A sealing compression component is configured to, under the drive of the drive assembly, deform itself to simultaneously operate the first control valve and the second control valve, thereby opening or closing the inlet and the outlet respectively; wherein, in response to the inlet being opened, liquid outside the housing flows into the drainage channel through the inlet; in response to the outlet being opened, liquid in the drainage channel flows out of the housing through the outlet.

[0011] Furthermore, one end of the sealing compression member is connected to the drainage channel;

[0012] The sealing compression member is configured to be compressed under force and simultaneously open the first control valve and close the second control valve; or, to be stretched under force and simultaneously open the second control valve and close the first control valve.

[0013] Furthermore, the drive assembly includes a motor and a linkage assembly, the motor being used to drive the linkage assembly, and the linkage assembly being connected to the sealing compressor, the first control valve, and the second control valve, respectively.

[0014] Furthermore, the drive assembly also includes a gear set and a transmission component, the transmission component connecting the gear set and the linkage assembly respectively; the gear set rotates under the drive of the motor, thereby driving the linkage assembly to move through the transmission component.

[0015] Furthermore, the transmission component includes an eccentric disk and a rotating rod, the gear set includes an output gear, one end of the shaft of the output gear is connected to the eccentric disk, and the eccentric disk rotates coaxially with the output gear; the rotating rod is connected between the eccentric disk and the connecting rod assembly.

[0016] Furthermore, the linkage assembly includes a third linkage, one end of which is connected to the rotating rod and the other end of which is connected to the sealing compression member. Under the drive of the rotating rod, the third linkage causes the sealing compression member to deform and be in a compressed or stretched state.

[0017] Furthermore, the linkage assembly also includes a connector, a first link, and a second link. The motor output shaft of the motor passes through the connector and drives the connector to rotate. The connector is connected to the first link and the second link respectively. The first link is connected to the first control valve, and the second link is connected to the second control valve. Two eccentric disks are configured, with the first rotating rod of one eccentric disk connected to the connector and the second rotating rod of the other eccentric disk connected to the third link.

[0018] Furthermore, the first control valve and the second control valve are respectively configured as piston valves; the first control valve includes a first piston rod and a first piston, the two ends of the first piston rod are respectively connected to the first connecting rod and the first piston, and the first piston rod is controlled to reciprocate in the extension direction of the first piston rod, so that the first piston opens / closes the water inlet; the second control valve includes a second piston rod and a second piston, the two ends of the second piston rod are respectively connected to the second connecting rod and the second piston, and the second piston rod is controlled to reciprocate in the extension direction of the second piston rod, so that the second piston opens / closes the drain outlet.

[0019] Furthermore, the first control valve further includes a first sealing ring, which is sleeved on the outer periphery of the first piston; the second control valve further includes a second sealing ring, which is sleeved on the outer periphery of the second piston.

[0020] Furthermore, the linkage assembly further includes a first sliding bracket and a second sliding bracket, the first sliding bracket being disposed between the first connecting rod and the first piston rod; the second sliding bracket being disposed between the second connecting rod and the second piston rod; and / or, the linkage assembly further includes a shock absorber, with one shock absorber fitted on the outer side of each of the first sliding bracket and the second sliding bracket.

[0021] Furthermore, the housing is provided with a first mounting hole and a second mounting hole; the shock absorber includes a first shock absorber and a second shock absorber, one end of the first shock absorber abuts against the inner edge of the first mounting hole, and the other end of the first shock absorber abuts against the edge of the water inlet; one end of the second shock absorber abuts against the inner edge of the second mounting hole, and the other end of the second shock absorber abuts against the edge of the drain outlet.

[0022] Furthermore, the first damping block and the second damping block are respectively configured as hollow corrugated column structures, and guide blocks are provided on the first sliding bracket and the second sliding bracket, and the guide blocks are engaged with the protruding positions of the damping blocks.

[0023] Furthermore, the sealing compression component is configured as an airbag assembly, which includes an airbag body, a top cover, and a counterweight; the housing is provided with an opening, the airbag body is in sealed communication with the opening, the third connecting rod is connected to the top cover, and the top cover is fixedly connected to the airbag body; the counterweight is located inside the airbag body and is connected to the top of the airbag body.

[0024] Furthermore, the airbag assembly includes an airbag housing, the bottom edge of which is connected to the housing; a clearance hole is provided at the top of the airbag housing, and the third connecting rod passes through the clearance hole and is connected to the top cover.

[0025] Furthermore, the airbag assembly also includes a support shell, one end of which is connected to the edge of the shell opening, and the other end of which presses against the bottom edge of the airbag body; and / or, the airbag assembly also includes a seal, which is disposed at the connection between the support shell and the bottom edge of the airbag body to prevent gas inside the shell from leaking from the connection between the airbag body and the opening.

[0026] Furthermore, the connector also includes a through hole, a first connecting shaft, and a second connecting shaft. The first rotating rod passes through the through hole and is connected to the connector. The end of the first connecting rod is provided with a first positioning hole, and the end of the second connecting rod is provided with a second positioning hole. The first connecting shaft is connected to the first positioning hole, and the second connecting shaft is connected to the second positioning hole.

[0027] Furthermore, the first positioning hole and the second positioning hole are respectively configured as circular holes or strip holes.

[0028] Furthermore, the housing is provided with a first mounting hole and a second mounting hole, the first connecting rod passes through the first mounting hole and is connected to the first control valve; the second connecting rod passes through the second mounting hole and is connected to the second control valve.

[0029] Furthermore, the gear set includes a worm gear set and a reduction gear set, the motor is connected to the worm gear set, and the worm gear set is connected to the reduction gear set; the reduction gear set includes an output gear, and the output gear is connected to the transmission component.

[0030] Furthermore, the worm gear assembly includes a worm and a worm wheel, the motor output shaft of the motor is connected to the worm, and the worm wheel meshes with the worm; the reduction gear assembly also includes a pinion, the pinion is coaxially arranged with the worm wheel and rotates simultaneously, and the pinion meshes with the output gear; the radius of the pinion is smaller than the radius of the output gear.

[0031] Furthermore, the height of the end of the drainage channel near the inlet is higher than the height of the end of the drainage channel near the outlet; the end of the drainage channel near the outlet is configured as a cone, and the outlet is located at the center of the cone.

[0032] Furthermore, the drive assembly also includes a drive housing for accommodating the gear set and the connecting rod assembly; and / or, the motor housing is provided with heat dissipation holes for dissipating the heat generated during the operation of the motor.

[0033] Furthermore, a cleaning device includes the drainage device described above.

[0034] Based on the foregoing description, those skilled in the art will understand that in the aforementioned technical solution of this invention, by adding an airbag assembly and a drive assembly to the drainage device, the airbag assembly is connected to the drainage channel, and control valves are respectively installed at the inlet and outlet. Driven by the drive assembly, the airbag assembly is stretched and the first control valve is opened, creating a negative pressure inside the housing to draw sewage from the inlet into the drainage channel; or, the airbag assembly is compressed and the second control valve is opened to discharge sewage from the drainage channel from the outlet. This invention eliminates the need for a drainage pump and water tank in existing drainage devices, effectively reducing the manufacturing cost of the drainage device and minimizing the space occupied by the sewage system within the cleaning equipment.

[0035] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0036] To more clearly illustrate the technical solution of the present invention, some embodiments of the present invention will be described below with reference to the accompanying drawings. Those skilled in the art should understand that the same reference numerals may indicate the same or similar parts or components in different drawings; the drawings of the present invention are not necessarily drawn to scale. In the drawings:

[0037] Figure 1 is a front upper isometric view of the drainage device in some embodiments of the present invention;

[0038] Figure 2 is a first sectional view of the drainage device in Figure 1;

[0039] Figure 3 is a rear view of the drainage device in Figure 1;

[0040] Figure 4 is a second sectional view of the drainage device in Figure 1.

[0041] Reference numerals: 100, Drainage device; 1, Housing; 11, Inlet; 12, Drainage channel; 13, Outlet; 21, First control valve; 22, Second control valve; 3, Airbag assembly; 31, Airbag body; 32, Top cover; 33, Counterweight; 34, Airbag outer shell; 35, Support shell; 4, Drive assembly; 41, Motor; 411, Heat dissipation hole; 421, Worm gear; 422, Worm wheel; 423, First fixed shaft; 431. First eccentric disc; 4311. First rotating rod; 432. Second eccentric disc; 441. Connector; 442. First connecting rod; 4421. First positioning hole; 443. Second connecting rod; 4431. Second positioning hole; 444. Third connecting rod; 4451. First sliding bracket; 4452. Second sliding bracket; 446. Guide block; 4471. First damping block; 4472. Second damping block; 45. Drive housing. Detailed Implementation

[0042] Those skilled in the art should understand that the embodiments described below are merely a part of the embodiments of the present invention, and not all of the embodiments of the present invention. These partial embodiments are intended to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Based on the embodiments provided by the present invention, all other embodiments obtained by those skilled in the art without creative effort should still fall within the scope of protection of the present invention.

[0043] It should be noted that in the description of this invention, terms such as "center," "upper," "lower," "top," "bottom," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0044] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can also refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0045] The drainage device of some embodiments of the present invention will now be described in detail with reference to Figures 1 to 4. Figure 1 is a front upper isometric view of the drainage device in some embodiments of the present invention; Figure 2 is a first sectional view of the drainage device in Figure 1; Figure 3 is a rear view of the drainage device in Figure 1; and Figure 4 is a second sectional view of the drainage device in Figure 1.

[0046] It should be noted beforehand that, for ease of description and to enable those skilled in the art to quickly understand the technical solution of this invention, the following description only focuses on technical features that are strongly related (directly or indirectly related) to the technical problem and / or concept to be solved by this invention. Technical features that are less related to the technical problem and / or concept to be solved by this invention will not be described in detail. Since such less related technical features are common knowledge in the field, the omission of such less related features will not result in insufficient disclosure of this invention.

[0047] The drainage device 100 of this invention is applicable to some cleaning equipment with cleaning functions, such as washing machines, dishwashers, or robot vacuum cleaner base stations. The drainage device 100 is installed on the drainage side of the cleaning equipment, with its inlet connected to the wastewater source inside the cleaning equipment and its outlet connected to the external environment (sewage / discharge system). This invention, by adding an airbag assembly and a drive assembly, offers significant advantages over existing sewage discharge systems that rely on drain valves, drain pumps, and water tanks. Existing sewage discharge systems, due to the large size of the drain pumps and water tanks, have high production costs and are not conducive to large-scale factory production. This invention eliminates the need for drain pumps and water tanks, effectively reducing the production cost of the sewage discharge system and minimizing its footprint within the cleaning equipment.

[0048] As shown in Figures 1 to 4, in some embodiments of the present invention, a drainage device 100 is provided, which includes a housing 1, a sealing compression member, a drive assembly 4, and a control valve. The housing 1 is provided with an inlet 11, a drainage channel 12, and a drain outlet 13. The control valve is disposed at the inlet 11 and the drain outlet 13, and is used to control the opening / closing of the inlet 11 and the drain outlet 13. Specifically, the control valve includes a first control valve 21 and a second control valve 22, respectively disposed at the inlet 11 and the drain outlet 13. The sealing compression member is configured to, under the drive of the drive assembly, deform itself to simultaneously operate the first control valve 21 and the second control valve 22, thereby opening or closing the inlet 11 and the drain outlet 13 accordingly. In response to the inlet 11 being opened, liquid outside the housing 1 flows into the drainage channel 12 through the inlet 11; in response to the drain outlet 13 being opened, liquid in the drainage channel 12 flows out of the housing through the drain outlet 13. In some embodiments, the housing 1 is used to temporarily store liquid.

[0049] One end of the sealing compression member is in sealed communication with the drainage channel 12. The sealing compression member is configured to be stretched when subjected to force, so that the first control valve 21 at the inlet 11 opens, allowing sewage to be guided into the housing 1; or, the sealing compression member is configured to be compressed when subjected to force, so that the second control valve 22 at the outlet 13 opens, allowing sewage in the housing 1 to be discharged from the outlet 13.

[0050] The shell 1 is configured to be integrally manufactured by injection molding.

[0051] Specifically, the housing 1 also includes an inlet channel and an outlet channel. The inlet 11 is connected to the inlet of the inlet channel, and the outlet of the inlet channel is connected to the diversion channel 12. The inlet of the outlet channel is connected to the diversion channel 12, and the outlet of the outlet channel is connected to the drain outlet 13.

[0052] The orientation of the water inlet 11 and the drain outlet 13 can be adjusted according to the specific internal structure of the cleaning equipment. In this embodiment, both the water inlet 11 and the drain outlet 13 are set to face downwards.

[0053] The height of the end of the diversion channel 12 near the inlet 11 is higher than the height of the end of the diversion channel 12 near the outlet 13.

[0054] In some other embodiments of the invention, the end of the drainage channel 12 near the drain outlet 13 is set in a cone shape, and the drain outlet 13 is located at the center of the cone so that sewage can be discharged from the drain outlet 13.

[0055] An opening is also provided on the housing 1, which is connected to the drainage channel 12 and is used to install the airbag assembly 3.

[0056] In some embodiments of the present invention, the sealing compression member is configured as an airbag assembly 3. The airbag assembly 3 is hermetically connected to an opening on the housing 1 and communicates with a drainage channel 12. The airbag assembly 3 is configured to be stretched under force to create a negative pressure within the drainage channel 12, causing the inlet 11 to draw sewage into the drainage channel 12. Alternatively, the airbag assembly 3 is further configured to be compressed under force to discharge sewage from the drain outlet 13 within the drainage channel 12.

[0057] The airbag assembly 3 includes an airbag body 31, a top cover 32, and a counterweight 33. The airbag body 31 is in sealed communication with the opening. The output end of the drive assembly 4 is fixedly connected to the top cover 32, and the top cover 32 is fixedly connected to the airbag body 31. The counterweight 33 is located inside the airbag body 31 and is fixedly connected to the top of the airbag body 31.

[0058] The top cover 32 and the drive component 4 are provided with a connecting part, one end of which is connected to the top cover 32 and the other end of which is connected to the drive component 4.

[0059] The connecting part is formed by protruding upward from the center of the top cover 32. Alternatively, the connecting part is fixedly connected to the top cover 32 by fasteners. The fasteners can be screws or rivets.

[0060] The connecting part can be configured as a hook structure, with the hook body of the hook structure hooking the drive component 4 and the handle end of the hook structure connected to the top cover 32.

[0061] The airbag assembly 3 is also provided with a support shell 35. One end of the support shell 35 is fixedly connected to the edge of the opening of the shell 1, and the other end of the support shell 35 presses the bottom edge of the airbag body 31.

[0062] In some other embodiments of the invention, the airbag assembly 3 further includes a seal disposed at the connection between the support housing 35 and the bottom edge of the airbag body 31, the seal being used to prevent gas inside the housing 1 from leaking from the connection between the airbag body 31 and the opening.

[0063] In other embodiments of the present invention, the airbag assembly 3 further includes an airbag housing 34, the bottom edge of which is connected to the housing 1, and the airbag housing 34 is used to cover the airbag body 31.

[0064] The top of the airbag housing 34 is provided with a clearance hole, through which the output end of the drive assembly 4 can be connected to the top cover 32. Specifically, the output end of the transmission component can be connected to the top cover 32 through the clearance hole.

[0065] In other embodiments of the present invention, the drive assembly 4 includes a motor 41 and a linkage assembly, which is connected to the airbag assembly 3. In this embodiment, the drive assembly 4 can directly drive the linkage assembly to move, causing the linkage assembly to compress or stretch the airbag assembly 3. Specifically, the linkage assembly includes a third link 444, and the output shaft of the motor 41 is connected to the third link 444. The motor 41 rotates in the forward direction to apply a force to the third link 444 to stretch the airbag assembly 3, drawing sewage from the inlet 11 into the drainage channel 12; the motor 41 rotates in the reverse direction to apply a force to the third link 444 to compress the airbag assembly 3, discharging the sewage in the drainage channel 12 from the outlet 13.

[0066] In this embodiment, the first control valve 21 and the second control valve 22 can be configured as electric valves or solenoid valves. Furthermore, the drainage device 100 also includes a control module electrically connected to the first control valve 21, the second control valve 22, and the motor 41, such that when the motor 41 rotates forward, the first control valve 21 opens the inlet 11 and the second control valve 22 closes the drain outlet 13; or, when the motor 41 rotates in reverse, the first control valve 21 closes the inlet 11 and the second control valve 22 opens the drain outlet 13.

[0067] It should be noted that the terms "forward rotation" and "reverse rotation" used in this invention are relative and do not refer to actual "rotation in the forward direction" or "rotation in the reverse direction." Therefore, those skilled in the art can choose the direction of motor rotation as needed, and this will not be elaborated further below.

[0068] The motor 41 includes a motor body and a motor housing, with a receiving cavity inside the motor housing, and the motor body is housed inside the motor housing.

[0069] In other embodiments of the present invention, the motor 41 housing is provided with heat dissipation holes 411 for dissipating the heat generated during the operation of the motor 41.

[0070] In other embodiments of the present invention, the drive assembly 4 further includes a gear set and a transmission component. The gear set is connected to the linkage assembly via the transmission component. The motor 41 drives the gear set to rotate, which in turn drives the linkage assembly to rotate, so that the first control valve 21 and the second control valve 22 are forced to open / close the inlet 11 or the outlet 13, and the airbag assembly 3 is forced to be compressed or stretched.

[0071] The gear set includes a worm gear set and a reduction gear set. The motor 41 is connected to the worm gear set, which is also connected to the reduction gear set. The reduction gear set includes an output gear, which is connected to the transmission component.

[0072] The worm gear assembly includes a worm 421 and a worm wheel 422. The output shaft of the motor 41 is connected to the worm 421, and the worm wheel 422 meshes with the worm 421.

[0073] Optionally, the connection between the output shaft of the motor 41 and the worm gear 421 can be configured to be a coupling or a key connection.

[0074] The reduction gear set includes a pinion and an output gear. The pinion and worm gear 422 are coaxially arranged and rotate simultaneously, and the pinion meshes with the output gear. Specifically, the gear set also includes a first fixed shaft 423 and a second fixed shaft. The pinion and worm gear 422 are both sleeved on the first fixed shaft 423, and the output gear is sleeved on the second fixed shaft.

[0075] The radius of the pinion is smaller than the radius of the output gear.

[0076] The drive assembly 4 also includes a drive housing 45, which houses the gear set and connecting rod assembly. Both ends of the fixed shaft are fixedly connected to the drive housing 45. Specifically, the drive housing 45 includes a first drive housing and a second drive housing. The first drive housing has a first fixing groove, and the second drive housing has a second fixing groove. Both ends of the fixed shaft are respectively fixed in the first fixing groove and the second fixing groove to securely mount the fixed shaft to the drive housing 45. It can be understood that the fixed shaft here includes a first fixed shaft 423 and a second fixed shaft.

[0077] In other embodiments of the invention, the gear set may also be configured to include only a reduction gear set, which includes a pinion and an output gear. The output shaft of the motor 41 is directly driven and connected to the pinion, the output gear meshes with the pinion, and the output gear is connected to the transmission component.

[0078] In other embodiments of the invention, the transmission component is configured as an eccentric disk that rotates coaxially with the output gear. The eccentric disk includes a disk body and a rotating rod, the disk body rotating coaxially with the output gear, and the rotating rod connected to a third connecting rod 444.

[0079] In other embodiments of the present invention, the transmission component is configured as two eccentric disks, with one eccentric disk connected to each end of the output gear's shaft, and each eccentric disk rotating coaxially with the output gear. Each eccentric disk includes a disk body and a rotating rod. The disk body rotates coaxially with the output gear, and the rotating rod is connected to a connecting rod assembly. Specifically, the eccentric disks include a first eccentric disk 431 and a second eccentric disk 432. The first eccentric disk 431 includes a first disk body and a first rotating rod 4311. A first mounting groove is provided on the side of the first disk body away from the first rotating rod 4311, and one end of a second fixed shaft is fixedly connected to the first mounting groove. The first rotating rod 4311 is connected to a connecting rod assembly on the control valve side, so as to drive the first eccentric disk 431 to rotate via the gear assembly, thereby causing the first rotating rod 4311 to drive the connecting rod assembly to move up and down, thereby driving the first control valve 21 and the second control valve 22 to open / close the inlet 11 or the outlet 13. The second eccentric disc 432 includes a second disc body and a second rotating rod. A second mounting groove is provided on the side of the second disc body away from the second rotating rod, and the other end of the second fixed shaft is fixedly connected to the second mounting groove. The second rotating rod is connected to the connecting rod assembly on the airbag side so as to drive the second eccentric disc 432 to rotate through the gear assembly, thereby driving the connecting rod assembly to move up and down, thereby compressing or stretching the airbag assembly 3.

[0080] The linkage assembly includes a third linkage 444, one end of which is connected to the rotating rod of the eccentric disc, and the other end is connected to the sealing compression member, so that the sealing compression member can be compressed or stretched. In other words, the third linkage 444 is connected to the airbag assembly 3. In this embodiment, only one linkage, namely the third linkage 444, and an eccentric disc are required. The first control valve 21 and the second control valve 22 are configured as electric valves or solenoid valves. Specifically, the third linkage 444 is connected to the airbag assembly 3 through a connecting part, that is, the third linkage 444 is connected to the top cover 32 through the connecting part.

[0081] In other embodiments of the present invention, the linkage assembly further includes a connector 441, a first link 442, and a second link 443. The motor output shaft can pass through the connector and drive the connector to rotate. The connector 441 is connected to the first link 442 and the second link 443 respectively. The first link 442 is connected to the first control valve 21, and the second link 443 is connected to the second control valve 22. There are two eccentric disks. The first rotating rod 4311 of one eccentric disk (i.e., the first eccentric disk 431) is connected to the connector 441, and the second rotating rod of the other eccentric disk (i.e., the second eccentric disk 432) is connected to the third link 444.

[0082] In other embodiments of the present invention, the connector 441 further includes a through hole, a first connecting shaft, and a second connecting shaft. The first rotating rod 4311 can pass through the through hole and connect to the connector 441. The end of the first connecting rod 442 is provided with a first positioning hole 4421, and the end of the second connecting rod 443 is provided with a second positioning hole 4431. The first connecting shaft is connected to the first positioning hole 4421, and the second connecting shaft is connected to the second positioning hole 4431.

[0083] The through hole is located at the center of the connector 441, and the first connecting shaft and the second connecting shaft are located at both ends of the connector 441. This allows the first rotating rod 4311 of the first eccentric disk 431 to be driven to rotate, while the first connecting shaft can drive the first connecting rod 442 to the highest position to open the first control valve 21. At this time, the second connecting rod 443 is in the lowest position, and the second control valve 22 is closed. Alternatively, the first rotating rod 4311 of the first eccentric disk 431 can be driven to rotate, while the second connecting shaft can drive the second connecting rod 443 to the highest position to open the second control valve 22. At this time, the first connecting rod 442 is in the lowest position, and the first control valve 21 is closed.

[0084] The first positioning hole 4421 and the second positioning hole 4431 are configured as circular holes or strip holes.

[0085] The housing 1 is provided with a first mounting hole and a second mounting hole. The first connecting rod 442 passes through the first mounting hole and is connected to the first control valve 21. The second connecting rod 443 passes through the second mounting hole and is connected to the second control valve 22.

[0086] In some examples of this embodiment, the linkage assembly is entirely located outside the housing 1. Specifically, the first linkage 442 is connected to the first control valve 21, which, when subjected to force, can enter the housing 1 through the first mounting hole to close the inlet 11; or, the first control valve 21, when subjected to force, can exit the housing 1 through the first mounting hole to open the inlet 11. The second linkage 443 is connected to the second control valve 22, which, when subjected to force, can enter the housing 1 through the second mounting hole to close the drain 13; or, the second control valve 22, when subjected to force, can exit the housing 1 through the second mounting hole to open the drain 13.

[0087] In some other examples of this embodiment, the linkage assembly is partially located inside the housing 1. Specifically, the first linkage 442 is connected to the first control valve 21, and the motor 41 operates, allowing the first linkage 442 to move up and down within the housing 1. When the first linkage 442 moves upward, the first control valve 21 opens the water inlet 11; when the first linkage 442 moves downward, the first control valve 21 closes the water inlet 11. The second linkage 443 is connected to the second control valve 22, and the motor 41 operates, allowing the second linkage 443 to move up and down within the housing 1. When the second linkage 443 moves upward, the second control valve 22 opens the drain outlet 13; when the second linkage 443 moves downward, the second control valve 22 closes the drain outlet 13.

[0088] In some further examples of this embodiment, the linkage assembly also includes a first sliding bracket 4451 and a second sliding bracket 4452, wherein the first sliding bracket 4451 is disposed between the first link 442 and the first control valve 21; and the second sliding bracket 4452 is disposed between the second link 443 and the second control valve 22.

[0089] In other examples of this embodiment, the linkage assembly further includes shock absorbers, with a shock absorber sleeved on the outer side of the first sliding bracket 4451 and the second sliding bracket 4452, respectively. Specifically, the shock absorbers include a first shock absorber 4471 and a second shock absorber 4472. One end of the first shock absorber 4471 abuts against the inner edge of the first mounting hole, and the other end of the first shock absorber 4472 abuts against the edge of the water inlet 11. One end of the second shock absorber 4472 abuts against the inner edge of the second mounting hole, and the other end of the second shock absorber 4472 abuts against the edge of the drain outlet 13.

[0090] Both the first damping block 4471 and the second damping block 4472 are flexible components.

[0091] In some other examples of this embodiment, the first damping block 4471 and the second damping block 4472 are both configured as hollow columns, and the inner sides of the first damping block 4471 and the second damping block 4472 are recessed into their corresponding sliding brackets to form engagement positions; the first sliding bracket 4451 and the second sliding bracket 4452 are provided with guide blocks 446, and the guide blocks 446 are engaged with the engagement positions of the damping blocks so that the damping blocks can counteract the thrust caused by the pressure difference between the flow channel and the outside of the channel at the moment the control valve is opened.

[0092] The two guide blocks 446 are integrally formed with the first sliding bracket 4451 and the second sliding bracket 4452, respectively. Alternatively, the two guide blocks 446 are fixedly connected to the first sliding bracket 4451 and the second sliding bracket 4452, respectively. Specifically, the two guide blocks are provided with guide holes, and the first sliding bracket 4451 and the second sliding bracket 4452 are provided with transverse through holes. The drive assembly 4 also includes positioning pins. By passing the positioning pins sequentially through the through holes of the first sliding bracket 4451 and the guide holes of one guide block, the first sliding bracket 4451 is fixedly connected to one guide block; by passing the positioning pins sequentially through the through holes of the second sliding bracket 4452 and the guide holes of another guide block, the second sliding bracket 4452 is fixedly connected to another guide block. Alternatively, both guide blocks 446 are provided with snap-fit ​​structures, which can snap-fit ​​with the first sliding bracket 4451 and the second sliding bracket 4452, respectively, to fix the two guide blocks to the first sliding bracket 4451 and the second sliding bracket 4452, respectively.

[0093] In some further examples of this embodiment, the first damping block 4471 and the second damping block 4472 are respectively configured as hollow corrugated column structures, and the first sliding bracket 4451 and the second sliding bracket 4452 are provided with guide blocks 446, which are engaged with the protruding positions of the damping blocks.

[0094] In other embodiments of the present invention, the first control valve 21 and the second control valve 22 are respectively configured as piston valves. The first control valve 21 includes a first piston rod and a first piston. The two ends of the first piston rod are respectively connected to a first connecting rod 442 and a first piston. The first piston rod is controlled to reciprocate in its extension direction to open / close the water inlet 11. The second control valve 22 includes a second piston rod and a second piston. The two ends of the second piston rod are respectively connected to a second connecting rod 443 and a second piston. The second piston rod is controlled to reciprocate in its extension direction to open / close the drain outlet 13.

[0095] In other examples of the embodiments, the first control valve 21 further includes a first sealing ring, which is sleeved on the outer periphery of the first piston. The second control valve 22 further includes a second sealing ring, which is sleeved on the outer periphery of the second piston.

[0096] The working principle of the drainage device 100 of the present invention will be briefly explained below:

[0097] During the water intake process of the drainage device 100, the control motor 41 starts to run, driving the worm gear assembly to mesh, so that the pinion and worm wheel 422 rotate coaxially and simultaneously. The pinion meshes with the output gear, and the two eccentric disks rotate coaxially with the output gear. The rotating rod on one eccentric disk drives the connecting piece 441 to rotate, so that the first connecting rod 442 is at its highest point, opening the first control valve 21. The second connecting rod 443 is at its lowest point, closing the second control valve 22. At the same time, the second rotating rod on the other eccentric disk drives the third connecting rod 444 to move, so that the third connecting rod 444 is at its highest point, causing the airbag assembly 3 to be stretched. At this time, a negative pressure is formed in the drainage channel 12, drawing sewage from the inlet 11 into the drainage channel 12.

[0098] During the drainage process of the drainage device 100, the control motor 41 starts to run, driving the worm gear assembly to mesh, so that the pinion and worm wheel 422 rotate coaxially and simultaneously. The pinion meshes with the output gear, and the two eccentric disks rotate coaxially with the output gear. The rotating rod on one eccentric disk drives the connecting piece 441 to rotate, so that the first connecting rod 442 is at the lowest point, closing the first control valve 21. The second connecting rod 443 is at the highest point, opening the second control valve 22. At the same time, the second rotating rod on the other eccentric disk drives the third connecting rod 444 to move, so that the third connecting rod 444 is at the lowest point, compressing the airbag assembly 3. At this time, the air in the drainage channel 12 is compressed, so that the sewage in the drainage channel 12 is discharged from the drain outlet 13 to the outside.

[0099] Those skilled in the art will understand that the present invention, by adding an airbag assembly 3 and a drive assembly 4 to the drainage device 100, connects the airbag assembly 3 to the drainage channel 12, and sets control valves at the inlet 11 and outlet 13 respectively. Driven by the drive assembly 4, the airbag assembly 3 is stretched and the first control valve 21 is opened, creating a negative pressure inside the housing 1 to draw sewage from the inlet 11 into the drainage channel 12; or, the airbag assembly 3 is compressed and the second control valve 22 is opened to discharge sewage from the drainage channel 12 out of the outlet 13. The present invention eliminates the need for a drainage pump and water tank in the existing drainage device 100, effectively reducing the manufacturing cost of the drainage device 100 and minimizing the space occupied by the sewage system within the cleaning equipment.

[0100] The technical solutions of the present invention have been described in conjunction with several embodiments above. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is not limited to these specific embodiments. Without departing from the technical principles of the present invention, those skilled in the art can disassemble and combine the technical solutions in the above embodiments, and can also make equivalent changes or substitutions to related technical features. Any changes, equivalent substitutions, improvements, etc., made within the technical concept and / or technical principles of the present invention will fall within the scope of protection of the present invention.

Claims

1. A drainage device, characterized in that, include: The shell includes an inlet, a drainage channel, and an outlet connected in sequence; A first control valve located at the water inlet and a second control valve located at the water outlet; Drive components are used to generate driving force; A sealing compression component is configured to, under the drive of the drive assembly, deform itself to simultaneously operate the first control valve and the second control valve, thereby opening or closing the inlet and the outlet respectively; wherein, in response to the inlet being opened, liquid outside the housing flows into the drainage channel through the inlet; in response to the outlet being opened, liquid in the drainage channel flows out of the housing through the outlet.

2. The drainage device according to claim 1, characterized in that, One end of the sealing compression member is connected to the drainage channel; The sealing compression member is configured to be compressed under force and simultaneously open the first control valve and close the second control valve; or, to be stretched under force and simultaneously open the second control valve and close the first control valve.

3. The drainage device according to claim 2, characterized in that, The drive assembly includes a motor and a linkage assembly. The motor drives the linkage assembly, which is connected to the sealing compressor, the first control valve, and the second control valve, respectively.

4. The drainage device according to claim 3, characterized in that, The drive assembly further includes a gear set and a transmission component, wherein the transmission component is respectively connected to the gear set and the connecting rod assembly; The gear set rotates under the drive of the motor, which in turn drives the connecting rod assembly to move through the transmission component.

5. The drainage device according to claim 4, characterized in that, The transmission component includes an eccentric disk and a rotating rod. The gear set includes an output gear. One end of the shaft of the output gear is connected to the eccentric disk, and the eccentric disk rotates coaxially with the output gear. The rotating rod is connected between the eccentric disk and the connecting rod assembly.

6. The drainage device according to claim 5, characterized in that, The linkage assembly includes a third linkage, one end of which is connected to the rotating rod and the other end of which is connected to the sealing compression member. Under the action of the rotating rod, the third linkage causes the sealing compression member to deform and be in a compressed or stretched state.

7. The drainage device according to claim 6, characterized in that, The linkage assembly further includes a connector, a first link, and a second link. The motor output shaft of the motor passes through the connector and drives the connector to rotate. The connector is connected to the first link and the second link respectively. The first link is connected to the first control valve, and the second link is connected to the second control valve. The eccentric disk is configured in two parts: the first rotating rod of one eccentric disk is connected to the connecting member, and the second rotating rod of the other eccentric disk is connected to the third connecting rod.

8. The drainage device according to claim 7, characterized in that, The first control valve and the second control valve are each configured as piston valves; The first control valve includes a first piston rod and a first piston. The two ends of the first piston rod are respectively connected to the first connecting rod and the first piston. The first piston rod is controlled to reciprocate in the extension direction of the first piston rod so that the first piston opens / closes the water inlet. The second control valve includes a second piston rod and a second piston. The two ends of the second piston rod are respectively connected to the second connecting rod and the second piston. The second piston rod is controlled to reciprocate in the extension direction of the second piston rod so that the second piston opens / closes the drain port.

9. The drainage device according to claim 8, characterized in that, The first control valve further includes a first sealing ring, which is sleeved on the outer periphery of the first piston; The second control valve also includes a second sealing ring, which is sleeved on the outer periphery of the second piston.

10. The drainage device according to claim 8, characterized in that, The linkage assembly further includes a first sliding bracket and a second sliding bracket, the first sliding bracket being disposed between the first connecting rod and the first piston rod; the second sliding bracket being disposed between the second connecting rod and the second piston rod; and / or The linkage assembly also includes a shock absorber, with one shock absorber fitted on the outer side of each of the first and second sliding brackets.

11. The drainage device according to claim 10, characterized in that, The housing is provided with a first mounting hole and a second mounting hole; The damping block includes a first damping block and a second damping block. One end of the first shock absorber abuts against the inner edge of the first mounting hole, and the other end of the first shock absorber abuts against the edge of the water inlet; One end of the second shock absorber abuts against the inner edge of the second mounting hole, and the other end of the second shock absorber abuts against the edge of the drain outlet.

12. The drainage device according to claim 11, characterized in that, The first damping block and the second damping block are respectively configured as hollow corrugated column structures. The first sliding bracket and the second sliding bracket are provided with guide blocks, and the guide blocks are engaged with the protruding positions of the shock-absorbing blocks.

13. The drainage device according to claim 6, characterized in that, The sealing compression component is configured as an airbag assembly, which includes an airbag body, a top cover, and a counterweight; the housing is provided with an opening, the airbag body is in sealed communication with the opening, the third connecting rod is connected to the top cover, and the top cover is fixedly connected to the airbag body. The counterweight is located inside the airbag body and is connected to the top of the airbag body.

14. The drainage device according to claim 13, characterized in that, The airbag assembly includes an airbag shell, the bottom edge of which is connected to the housing; The top of the airbag housing is provided with a clearance hole, and the third connecting rod passes through the clearance hole and connects to the top cover.

15. The drainage device according to claim 14, characterized in that, The airbag assembly also includes a support shell, one end of which is connected to the edge of the shell opening, and the other end of which presses against the bottom edge of the airbag body; and / or, The airbag assembly also includes a seal disposed at the connection between the support shell and the bottom edge of the airbag body, for preventing gas inside the shell from leaking from the connection between the airbag body and the opening.

16. The drainage device according to claim 7, characterized in that, The connector further includes a through hole, a first connecting shaft, and a second connecting shaft, wherein the first rotating rod passes through the through hole and is connected to the connector. The first connecting rod has a first positioning hole at its end, and the second connecting rod has a second positioning hole at its end; the first connecting shaft is connected to the first positioning hole, and the second connecting shaft is connected to the second positioning hole.

17. The drainage device according to claim 16, characterized in that, The first positioning hole and the second positioning hole are respectively set as circular holes or strip holes.

18. The drainage device according to claim 7, characterized in that, The housing is provided with a first mounting hole and a second mounting hole. The first connecting rod passes through the first mounting hole and is connected to the first control valve; the second connecting rod passes through the second mounting hole and is connected to the second control valve.

19. The drainage device according to claim 4, characterized in that, The gear set includes a worm gear set and a reduction gear set. The motor is connected to the worm gear set, and the worm gear set is connected to the reduction gear set. The reduction gear set includes an output gear, which is connected to the transmission component.

20. The drainage device according to claim 19, characterized in that, The worm gear assembly includes a worm and a worm wheel, the motor output shaft of the motor is connected to the worm, and the worm wheel meshes with the worm; The reduction gear set also includes a pinion, which is coaxially arranged with the worm gear and rotates simultaneously, and the pinion meshes with the output gear; The radius of the pinion is smaller than the radius of the output gear.

21. The drainage device according to claim 1, characterized in that, The height of the end of the diversion channel near the inlet is higher than the height of the end of the diversion channel near the outlet; The end of the drainage channel near the drain outlet is configured in a cone shape, and the drain outlet is located at the center of the cone shape.

22. The drainage device according to claim 4, characterized in that, The drive assembly further includes a drive housing for accommodating the gear set and the connecting rod assembly; and / or The motor housing is provided with heat dissipation holes to dissipate the heat generated during motor operation.

23. A cleaning device, characterized in that, The drainage device includes any one of claims 1 to 22.

Images