Sewage discharge structure, sewage tank, cleaning equipment and cleaning system

Abstract

The utility model provides a pollution discharge structure, a sewage tank, cleaning equipment and a cleaning system, and relates to the technical field of pollution discharge structures. The pollution discharge structure comprises a pollution discharge part, a flexible part and a driving mechanism, and an opening is formed in the pollution discharge part. The flexible part comprises a first end and a second end, and the flexible part is of a cylindrical structure. The first end is connected with the opening, the second end extends in the pollution discharge direction, the driving mechanism is in driving connection with the second end, and the driving mechanism is used for driving the second end to rotate in the circumferential direction of the pollution discharge direction, so that the flexible part is spirally deformed to open or close the opening. According to the pollution discharge structure, the opening is opened or closed by rotating the flexible part, so that the problem that normal use of a valve structure is affected due to the fact that dirt is likely to settle on an overturning structure of a valve in the prior art is solved.

Description

Technical Field

[0001] The present application relates to the technical field of sewage discharge structures, and in particular, to a sewage discharge structure, a sewage tank, a cleaning device, and a cleaning system. Background Art

[0002] In recent years, with the improvement of people's living standards, home cleaning has gradually entered the era of automation and intelligence. The cleaning devices that emerge as the times require, such as floor washers, have the functions of sweeping and mopping at the same time. It effectively reduces the workload of people in home cleaning and alleviates the fatigue of people during the home cleaning process.

[0003] Generally, in the structural design of a floor washer, a valve structure is usually provided on the sewage tank to open or close the sewage tank for filling or draining the sewage tank. The traditional valve structure usually has a flipping structure. When the flipping structure is flipped open, the sewage tank is opened, and when the flipping structure is closed, the sewage tank is closed.

[0004] However, since there are usually large particle dirt and hair and other garbage in the sewage tank of the floor washer, dust, dirt and other substances will be deposited on the flipping structure, thus affecting the normal operation of the valve structure. Summary of the Utility Model

[0005] The embodiments of the present application provide a sewage discharge structure, a sewage tank, a cleaning device, and a cleaning system to solve the problem that dirt easily precipitates on the flipping structure and affects the normal operation of the valve structure in the above related technologies.

[0006] The first aspect of the embodiments of the present application provides a sewage discharge structure applied to a cleaning device, including:

[0007] A sewage discharge part, an opening is formed at the sewage discharge part;

[0008] A flexible member, including a first end and a second end, the flexible member is a cylindrical structure;

[0009] The first end is connected to the opening, and the second end extends along the sewage discharge direction;

[0010] A driving mechanism, drivingly connected to the second end, the driving mechanism is used to drive the second end to rotate circumferentially along the sewage discharge direction, so that the flexible member is helically deformed to open or close the opening.

[0011] The sewage discharge structure provided by the embodiments of the present application can provide a sewage discharge port for the sewage discharge structure by setting the sewage discharge part, and provide an installation position for the flexible member and support the flexible member. Among them, the sewage discharge part can be a cylindrical wall.

[0012] Since there are usually large particulate dirt, hair and other garbage in the sewage tank of the floor washer, in this solution, a flexible member is provided. The flexible member serves as the sewage discharge outlet and is used to open and stop sewage discharge by being opened and closed. The flexible member is set in a cylindrical structure, and there are no other components inside the flexible member, and the inner wall of the flexible member is smooth. The first end of the flexible member is fixed, and the second end can be driven to rotate relative to the first end. In this way, by rotating the second end of the flexible member, using the spiral deformation of the flexible member itself, the middle position of the flexible member spirally contracts inward to form a closed structure. The closed structure gradually contracts inward until it is completely closed, as shown in Figure 3 the state shown, to achieve the blocking of the middle part of the flexible member, and then achieve the closing of the sewage discharge part.

[0013] When the second end of the flexible member rotates in the opposite direction relative to the first end, the spiral closed structure at the middle position of the flexible member gradually unfolds, and the opening of the flexible member can be achieved, as shown in Figure 2 the state shown. Thus, the closing and opening of the sewage discharge part are achieved to carry out sewage discharge control.

[0014] In the prior art, the sewage discharge part mostly uses a flip structure, that is, the opening and closing of the sewage discharge part are achieved by the flipping of the flip, and then the sewage discharge control is achieved. Although this structure can achieve sewage discharge control, dirt and hair are easily deposited on the flip structure, especially at the rotating shaft of the flip, resulting in dirt or hair not being easily washed away by the flushing force during sewage discharge, thus affecting the normal operation of the valve structure. And the dirt and hair accumulated at the rotating shaft of the flip are difficult to clean manually due to the blocking of the flip.

[0015] Since there are usually large particulate dirt, hair and other garbage in the sewage tank of the floor washer, in this solution, a driving mechanism is provided to drive the second end of the flexible member to rotate forward or backward relative to the first end, so that the middle part of the flexible member generates or eliminates a closed structure to achieve the open or closed state of the flexible member, and then achieve sewage discharge control. When a closed structure is formed by rotation between the first end and the second end of the flexible member, when the first end and the second end of the flexible member are blocked by the closed structure, the sewage discharge part is closed, corresponding to the non-sewage discharge state, as shown in Figure 3 the state shown. When the closed structure formed between the first end and the second end of the flexible member is opened due to reverse rotation, water flows out from the opening in the middle of the closed structure. At this time, the flushing force is relatively large, and the dirt and hair located on the closed structure can be washed away by the flushing force during sewage discharge; when it is completely opened, the closed structure completely disappears. At this time, the inner wall of the flexible member is smooth and there is no obstruction, as shown in Figure 2 the state shown. There is no attachment place for dirt and hair, so dirt and hair accumulation can be prevented, and thus smooth sewage discharge can be ensured, and no manual cleaning is required.

[0016] In a possible implementation, the second end rotates circumferentially along the sewage discharge direction relative to the first end, and at least part of the flexible member between the first end and the second end is helically deformed to generate a closed structure.

[0017] By providing a flexible member, since the flexible member is relatively soft, relative rotation of the two ends of the flexible member can form a helical closed structure between the two ends of the flexible member. In this way, the first end and the second end of the flexible member can be made non-communicating through the structural deformation of the flexible member itself. This can simplify the structure of the sewage discharge structure and reduce costs. And when the closed structure formed between the first end and the second end of the flexible member is opened, the dirt located on the closed structure can be washed away, so dirt accumulation can be prevented, thereby solving the problem in the related art that when using a flip structure, dirt easily precipitates on the flip structure, affecting the normal operation of the valve structure.

[0018] In a possible implementation, the closed structure gradually narrows as the second end continuously rotates relative to the first end until it is completely closed to block the communication between the first end and the second end of the flexible member.

[0019] By providing a flexible member and setting the flexible member as a cylindrical structure, and fixing the first end of the flexible member while the second end can rotate, the hole in the middle of the flexible member can be closed by rotating the second end of the flexible member, and a closed structure can be formed between the first end and the second end of the flexible member. Furthermore, the first end and the second end of the flexible member are made non-communicating, and then the opening of the sewage discharge part is closed. At this time, the sewage discharge part cannot communicate with the outside, forming a closed structure.

[0020] When it is necessary to communicate the sewage discharge part with the outside, the second end of the flexible member can be rotated in a direction opposite to the rotation direction when closing the opening. In this way, the closed structure formed between the first end and the second end of the flexible member can be gradually opened, so that the first end and the second end of the flexible member are communicated, that is, the opening of the sewage discharge part is opened. When the second end of the flexible member is farthest from the opening of the sewage discharge part, the opening in the middle of the flexible member is the largest. At this time, the opening of the sewage discharge part is completely opened, that is, the opening reaches the maximum.

[0021] In this way, the first end and the second end of the flexible member can be made non-communicating through the structural deformation of the flexible member itself. This can simplify the structure of the sewage discharge structure and reduce costs. And when the closed structure formed between the first end and the second end of the flexible member is opened, the dirt located on the closed structure can be washed away, so dirt accumulation can be prevented, thereby solving the problem in the related art that when using a flip structure, dirt easily precipitates on the flip structure, affecting the normal operation of the valve structure.

[0022] In a possible implementation, the first end of the flexible member is fixedly connected to the inner side of the opening;

[0023] The second end of the flexible member extends along the sewage discharge direction and turns outwards from the opening to the outside of the opening.

[0024] With such an arrangement, the space occupied by the sewage discharge part and the flexible member in the sewage discharge direction can be reduced, which is beneficial to the miniaturization development of the sewage discharge structure.

[0025] In a possible implementation manner, the flexible member is of an integral structure.

[0026] With such an arrangement, the sealing performance of the flexible member can be improved, and the structural strength of the flexible member can be enhanced, preventing the flexible member from cracking when the flexible member rotates, thereby extending the service life of the flexible member.

[0027] In a possible implementation manner, when the opening is opened to the maximum, the length of the flexible member located outside the opening in the sewage discharge part is greater than or equal to the radius of the opening.

[0028] With such an arrangement, when the second end of the flexible member is closest to the opening, there is enough length of the flexible member to close the hole in the middle of the flexible member through rotational deformation, and the sealing effect is improved, thereby closing the opening of the sewage discharge part.

[0029] In a possible implementation manner, the flexible member is of a soft rubber structure.

[0030] With such an arrangement, the flexible member can have better elasticity, preventing problems such as fracture when the flexible member is repeatedly rotationally deformed, thereby extending the service life of the flexible member. In addition, the soft rubber structure has a lower cost, which can reduce the cost of the sewage discharge structure.

[0031] In a possible implementation manner, when the second end of the flexible member is farthest from the opening, the opening is in a fully open state;

[0032] When the second end of the flexible member is closest to the opening, the opening is completely closed.

[0033] With such an arrangement, the space outside the sewage discharge part can be fully utilized. That is to say, on the premise of ensuring that the opening of the sewage discharge part can be closed, the size of the sewage discharge part in the sewage discharge direction is minimized, which can save the space occupied by the sewage discharge part, is beneficial to the miniaturization development of the sewage discharge structure, and can save materials and reduce costs.

[0034] In a possible implementation manner, it includes an annular frame; wherein,

[0035] The annular frame is fixedly connected to the second end of the flexible member;

[0036] The annular frame is movably connected to the sewage discharge part, and the annular frame is drivingly connected to the driving mechanism;

[0037] The driving mechanism is used to drive the annular frame to rotate along the circumference of the sewage discharge part.

[0038] Such arrangement can conveniently fix the second end of the flexible member and can also realize the connection with the driving mechanism and the sewage discharge part, so as to realize the second end of the flexible member being driven to rotate along the circumferential direction of the sewage discharge part and to move along the axial direction of the sewage discharge part.

[0039] In a possible implementation, a side of the annular frame facing the sewage discharge portion is movably connected to the sewage discharge portion, and a side of the annular frame facing away from the sewage discharge portion is drivingly connected to the driving mechanism.

[0040] In a possible implementation, one of the sewage discharge part and the annular frame is provided with a guide slide groove, and the other of the sewage discharge part and the annular frame is provided with a slider that cooperates with the guide slide groove; wherein,

[0041] The sliding block is cooperatively connected with the guide slot;

[0042] When the annular frame rotates along the circumferential direction of the sewage discharge portion, the sliding block rotates along the guide slot in the circumferential direction of the sewage discharge portion and / or moves in the axial direction of the sewage discharge portion.

[0043] With such arrangement, when the annular frame rotates in the circumferential direction of the sewage discharge part, the slider rotates in the circumferential direction of the sewage discharge part and / or moves in the axial direction of the sewage discharge part along the guide slot, thereby driving the second end of the flexible member to rotate in the circumferential direction of the sewage discharge part while moving in the axial direction of the sewage discharge part. When the second end of the flexible member moves in a direction close to the opening, the second end of the flexible member can be relaxed relative to the first end and generate partial redundancy. In addition, the rotation of the second end of the flexible member can cause the partial redundancy between the first end and the second end to rotate and deform, thereby closing the opening. When the second end of the flexible member moves in a direction away from the opening, the partial redundancy between the first end and the second end is stretched, thereby opening the opening. In addition, the structure of the guide slot and the slider is relatively simple, which can reduce the difficulty of processing the sewage discharge structure and thus reduce the cost.

[0044] In a possible implementation, the guide slot includes an inclined section; wherein,

[0045] The inclined section is spirally arranged along the circumference of the sewage discharge portion, and two ends thereof extend toward two axial ends of the sewage discharge portion respectively;

[0046] The inclined section is used to guide the sliding block to rotate along the circumferential direction of the sewage discharge portion and to move along the axial direction of the sewage discharge portion.

[0047] With such a setting, while the slider rotates, it can move along the axial direction of the sewage discharge part. This simplifies the structure of the guiding chute and reduces the processing cost.

[0048] In a possible implementation, the guiding chute further includes a horizontal section; wherein,

[0049] The horizontal section is connected to the inclined section;

[0050] The horizontal section is arranged along the circumferential direction of the sewage discharge part, and the plane where the horizontal section is located is perpendicular to the central axis of the sewage discharge part;

[0051] The horizontal section is used to guide the slider to rotate along the circumferential direction of the sewage discharge part.

[0052] With such a setting, when the second end of the flexible part is in the horizontal section, it can only rotate along the circumferential direction of the sewage discharge part and does not move along the axial direction of the sewage discharge part. In this way, the distance that the second end of the flexible part moves in the axial direction of the sewage discharge part can be fixed, preventing the second end of the flexible part from detaching from the sewage discharge part. Additionally, after the flexible part moves to a specific position, there is sufficient space for rotational deformation, enabling the channel in the middle of the flexible part to be fully closed and enhancing the sealing performance.

[0053] In a possible implementation, the sewage discharge part includes a fixed end and a free end. The fixed end is used to connect to the cleaning device, and the opening is formed at the free end; wherein,

[0054] The first end of the flexible part is fixedly connected to the inner side of the fixed end of the sewage discharge part.

[0055] It should be noted that the fixed end of the sewage discharge part has relatively sufficient assembly space. Therefore, with such a setting, it is convenient to fixedly connect the flexible part to the sewage discharge part. Compared with connecting the first end of the flexible part to the inner wall of the sewage discharge part, connecting to the fixed end of the sewage discharge part can reduce the assembly difficulty and improve the connection stability between the flexible part and the sewage discharge part, thereby extending the service life of the sewage discharge structure.

[0056] In a possible implementation, when the guiding chute is located on the sewage discharge part, the horizontal section is located at one end of the guiding chute close to the free end of the sewage discharge part;

[0057] When the guiding chute is located on the annular frame, the horizontal section is located at one end of the guiding chute close to the fixed end of the sewage discharge part.

[0058] With such a setting, when closing the opening of the sewage discharge part, it can ensure that the second end of the flexible part has sufficient space for rotational deformation, enabling the channel in the middle of the flexible part to be fully closed and enhancing the sealing performance.

[0059] In a possible implementation, the length of the horizontal section in the circumferential direction of the sewage discharge part is less than the circumference of the sewage discharge part.

[0060] With such a setting, it can ensure that there is enough space for rotational deformation at the second end of the flexible part, so that the channel in the middle of the flexible part is fully closed, improving the sealing performance. It can also prevent the horizontal section from forming a closed loop and prevent the annular frame from damaging the flexible part due to continuous rotation.

[0061] In a possible implementation, it further includes an assembly channel; wherein,

[0062] The assembly channel is communicated with the guiding chute, and the assembly channel is used for the slider to be connected with the guiding chute in a matching manner.

[0063] With such a setting, it can facilitate the assembly of the annular frame with the slider or slide rail and the sewage discharge part together, reducing the assembly difficulty.

[0064] In a possible implementation, the assembly channel includes a stop convex edge; wherein,

[0065] The stop convex edge is located at one end of the assembly channel close to the guiding chute;

[0066] The positive projections of the stop convex edge and the slider in the axial direction of the sewage discharge part at least partially overlap, and the stop convex edge is used to limit the slider from falling off the assembly channel.

[0067] With such a setting, it can prevent the slider from disengaging from the guiding chute at the assembly channel when the slider and the assembly channel are opposite to each other, ensuring the stable cooperation between the slider and the guiding chute.

[0068] In a possible implementation, the number of the guiding chutes is multiple; wherein,

[0069] The multiple guiding chutes are arranged at intervals along the circumferential direction of the sewage discharge part, and the inclination directions of the inclined sections of the multiple guiding chutes are the same;

[0070] One slider is fitted in each guiding chute.

[0071] With such a setting, it can improve the force balance in the circumferential direction of the annular frame, reduce the shaking of the annular frame, prevent the annular frame from tipping over, and can also prevent problems such as jamming when the annular frame moves.

[0072] In a possible implementation, at least part of the structures of the multiple guiding chutes overlap with each other in the circumferential direction of the sewage discharge part.

[0073] With such a setting, without increasing the size of the sewage discharge part, the length of the guiding chute can be extended, ensuring that the second end of the flexible part has sufficient space for rotational deformation, enabling the passage in the middle of the flexible part to be fully closed, improving the sealing performance, and being conducive to the miniaturization development of the sewage discharge structure.

[0074] In a possible implementation manner, the number of both the guiding chute and the slider is two;

[0075] One of the two guiding chutes is configured as a first guiding chute, and the slider cooperating with the first guiding chute is a first slider;

[0076] The other of the two guiding chutes is configured as a second guiding chute, and the slider cooperating with the second guiding chute is a second slider; wherein,

[0077] The first slider and the second slider are arranged at an interval of 180° in the circumferential direction of the sewage discharge part;

[0078] The first guiding chute and the second guiding chute are arranged at an interval of 180° in the circumferential direction of the sewage discharge part.

[0079] With such a setting, the force balance during the movement of the annular frame can be improved, the stability of the annular frame during movement can be enhanced, the shaking of the annular frame can be reduced, the risk of the annular frame tipping over can be prevented, and problems such as jamming during the movement of the annular frame can also be avoided. Setting two sliders and guiding chutes can improve the stability of the annular frame during movement, simplify the structure of the sewage discharge structure, and reduce costs.

[0080] In a possible implementation manner, a part of the horizontal section of the second guiding chute extends into the horizontal section of the first guiding chute; wherein,

[0081] The dimension of the horizontal section of the first guiding chute in the axial direction of the sewage discharge part is larger than the dimension of the horizontal section of the second guiding chute in the axial direction of the sewage discharge part;

[0082] The depth of the horizontal section of the second guiding chute in the radial direction of the sewage discharge part is larger than the depth of the horizontal section of the first guiding chute in the radial direction of the sewage discharge part.

[0083] With such a setting, without increasing the size of the sewage discharge part, the lengths of the horizontal sections of the first guiding chute and the second guiding chute can be extended, ensuring that there is sufficient space for the second end of the flexible part to rotate and deform, enabling the passage in the middle of the flexible part to be fully closed, improving the sealing performance, and being conducive to the miniaturization development of the sewage discharge structure. Additionally, by setting the sizes of the horizontal sections of the first guiding chute and the second guiding chute differently, it is possible to prevent the first guiding chute and the second guiding chute from being connected, forming a closed loop for the horizontal sections of the first guiding chute and the second guiding chute, thereby preventing the annular frame from continuously rotating and damaging the flexible part. It can also prevent the first slider from sliding into the guiding chute of the second slider, causing the sewage discharge structure to malfunction.

[0084] In a possible implementation manner, the shapes of the first slider and the second slider are different; wherein,

[0085] The dimension of the first slider in the axial direction of the sewage discharge part is greater than the dimension of the second slider in the axial direction of the sewage discharge part.

[0086] With such a setting, the shapes of the guiding chutes corresponding to the first slider and the second slider can be different, preventing the first slider and the second slider from entering the same guiding chute and affecting the normal use of the sewage discharge structure.

[0087] In a possible implementation manner, the first slider is a quadrilateral structure, and the four corners of the first slider are all arc structures.

[0088] With such a setting, the resistance of the first slider in the first guiding chute can be reduced, enabling the first slider to move more smoothly in the first guiding chute, preventing situations such as jamming, and reducing the wear of the first slider and the first guiding chute, thereby extending the service life of the sewage discharge structure.

[0089] In a possible implementation manner, the second slider includes a first side surface and a second side surface; wherein,

[0090] The first side surface and the second side surface are arranged opposite to each other along the axial direction of the annular frame;

[0091] In the circumferential direction of the annular frame, the two ends of the first side surface respectively extend towards the two ends of the second side surface, and the two ends of the second side surface respectively extend towards the two ends of the first side surface, and an arc surface is provided at the connection between the first side surface and the second side surface.

[0092] With such a setting, it can have a different shape from the first slider. Additionally, the resistance of the second slider in the second guiding chute can be reduced, enabling the second slider to move more smoothly in the second guiding chute, preventing situations such as jamming, and reducing the wear of the second slider and the second guiding chute, thereby extending the service life of the sewage discharge structure.

[0093] In a possible implementation, the guide chute is arranged on the outside of the sewage discharge portion;

[0094] The sliding block is arranged on a side of the annular frame facing the sewage discharge portion.

[0095] Compared with setting the guide slot on the annular frame, this arrangement can reduce the size of the annular frame in the axial direction, making the structure of the annular frame smaller and lighter, which can reduce the driving force when the annular frame rotates, that is, it is easier to drive, so a driving mechanism with less power can be selected, thereby saving energy. In addition, if the annular frame is grooved, the annular frame needs to be made thicker, which will increase the weight of the annular frame and is not conducive to driving.

[0096] In a possible implementation, a gear ring is provided on a side of the annular frame facing away from the sewage discharge portion.

[0097] Such an arrangement can simplify the structure of the driving mechanism and facilitate operation. The annular frame can be driven by only meshing connection with the gear ring, and the control accuracy is high.

[0098] In a possible implementation, the driving mechanism includes a driving gear; wherein,

[0099] The central axis of the driving gear is parallel to the central axis of the annular frame;

[0100] The driving gear is meshingly connected with the gear ring of the annular frame;

[0101] In the axial direction of the sewage discharge portion, the driving gear is slidably connected to the gear ring.

[0102] With such arrangement, the driving gear can drive the annular frame to rotate, and the annular frame can also move along the axial direction of the driving gear.

[0103] In a possible implementation, the driving mechanism includes a driving motor; wherein,

[0104] The driving motor is connected to the driving gear, and the driving motor is used to drive the driving gear to rotate.

[0105] Such an arrangement can provide power for the driving gear, ensuring that the driving gear can drive the gear ring to rotate, and then drive the annular frame to rotate.

[0106] In a possible implementation, the driving mechanism includes a transmission shaft; wherein,

[0107] The driving motor is connected to the transmission shaft, and one end of the transmission shaft away from the driving motor is connected to the driving gear.

[0108] Such an arrangement allows the drive motor to be indirectly connected to the drive gear, thus increasing the flexibility of the installation position of the drive mechanism, thereby facilitating the installation of the drive motor at a suitable position and reducing the difficulty of assembling the drive mechanism.

[0109] In a possible implementation, the driving mechanism includes a limit block; wherein,

[0110] The limit block abuts against an end of the driving gear away from the transmission shaft;

[0111] The limiting block is used to limit the movement of the driving gear in the axial direction of the driving gear.

[0112] Such an arrangement can limit the axial movement of the driving gear, prevent the driving gear from shaking, and improve the stability of the driving gear.

[0113] In a possible implementation, the fixed end of the sewage discharge portion is provided with a bearing wall, and the bearing wall extends outward along the circumference of the sewage discharge portion; wherein,

[0114] A first mounting portion is provided on the bearing wall, and the first mounting portion is used to mount the limit block;

[0115] The driving mechanism comprises a first elastic member, which is compressed and arranged in the first mounting portion, and one end of the first elastic member abuts against the first mounting portion, and the other end abuts against an end of the limit block away from the driving gear.

[0116] Such arrangement can facilitate the assembly of the driving mechanism. In addition, by providing the first elastic member, the driving mechanism can be conveniently assembled on the first mounting portion, and the limiting block can also be stably connected to the driving gear, thereby improving the stability of the driving gear.

[0117] In a possible implementation, a locking structure is also included; wherein,

[0118] The locking structure is located outside the free end of the sewage discharge portion;

[0119] When the annular frame is located at the free end of the cylindrical wall, the locking structure is locked and connected with the gear ring.

[0120] Such an arrangement can realize self-locking of the gear ring after the flexible member closes the opening, i.e. the ratchet principle, so that the flexible member can remain in a closed state, preventing the flexible member from rebounding after the driving force of the driving mechanism disappears, causing water leakage.

[0121] In a possible implementation, the locking structure includes a locking member; wherein,

[0122] The locking member is provided with a locking portion extending toward the gear ring;

[0123] When the locking structure is locked and connected with the gear ring, the locking portion is clamped and connected with the gear ring.

[0124] With such an arrangement, the gear ring can be self-locked after the flexible member closes the opening.

[0125] In a possible implementation, a guide surface is provided at one end of the locking portion away from the free end of the sewage discharge portion; wherein,

[0126] In the direction from the locking member to the sewage discharge portion, the guide surface gradually inclines from a direction close to the fixed end of the sewage discharge portion toward a free end of the sewage discharge portion.

[0127] With such arrangement, when the gear ring moves toward the free end of the sewage discharge part, the gear ring slides along the guide surface so that the locking part enters between the teeth of the gear ring and is engaged with the gear ring. This can reduce the resistance between the locking part and the gear ring, prevent the gear ring from breaking the locking part, and thus extend the service life of the locking part.

[0128] In a possible implementation, in the circumferential direction of the sewage discharge portion, the locking portion includes two side walls arranged opposite to each other; wherein,

[0129] In the direction from the locking member to the sewage discharge portion, the two side walls gradually shrink inwards.

[0130] With such arrangement, when the gear ring rotates, the locking part can move along the side wall relative to the gear ring, thereby separating the gear ring and the locking part. By arranging the side wall in a structure where the two side walls gradually contract inwards in the direction from the locking part to the sewage discharge part, the resistance between the gear ring and the locking part can be reduced, and the wear on the gear ring and the locking part can be reduced, thereby extending the service life of the sewage discharge structure.

[0131] In a possible implementation, the fixed end of the sewage discharge portion is provided with a bearing wall, and the bearing wall extends outward along the circumference of the fixed end; wherein,

[0132] The bearing wall is provided with a second mounting portion, and the second mounting portion is used for mounting the locking structure.

[0133] Such an arrangement can provide an installation position for the locking structure so as to facilitate installation of the locking structure.

[0134] In a possible implementation, the locking member includes a fixing portion and an extension arm; wherein,

[0135] In the circumferential direction of the sewage discharge part, the extension arm extends from the fixed part in a direction away from the fixed part, the locking part is arranged on the side of the extension arm facing the sewage discharge part, and the locking part is arranged at an interval from the fixed part;

[0136] The fixed part is rotatably connected to the second mounting part;

[0137] In the radial direction of the sewage discharge part, a second elastic member is provided between the extension arm and the second mounting part.

[0138] With such an arrangement, the locking part can rotate around the fixed part, that is to say, the extension arm can rotate around the fixed part. In this way, when the gear ring is not under driving force, the locking part is engaged with the driving gear to lock the gear ring and prevent the flexible part from rebounding. When the gear ring is under driving force, the gear ring can push the locking part to compress the second elastic member, and then separate the locking part from the gear ring to open the opening subsequently.

[0139] In the second aspect of the embodiments of the present application, a sewage tank for a cleaning device is provided. The sewage tank includes the sewage discharge structure according to any one of the first aspects above. Among them, the cleaning device includes a body, and at least part of the driving mechanism of the sewage discharge structure is arranged on the body.

[0140] In the sewage tank of the embodiments of the present application, by providing the sewage discharge structure of the first aspect, the problem of blockage of the sewage discharge port of the sewage tank can be prevented.

[0141] In the third aspect of the embodiments of the present application, a cleaning device is provided, including the sewage discharge structure according to any one of the first aspects above.

[0142] In the cleaning device of the embodiments of the present application, by providing the sewage discharge structure of the first aspect, sewage discharge can be facilitated, and the problem of dirt accumulation in the sewage discharge structure can be prevented, improving the user experience.

[0143] In the fourth aspect of the embodiments of the present application, a cleaning system is provided, including a base station or a pedestal, and the sewage tank according to the second aspect.

[0144] In the cleaning system provided by the embodiments of the present application, by providing the sewage tank of the second aspect, sewage discharge can be facilitated, and the problem of dirt accumulation in the sewage discharge structure can be prevented, improving the user experience.

[0145] The sewage discharge structure provided by the embodiment of the present application sets a flexible member, which is set as a cylindrical structure. The first end of the flexible member is fixed, and the second end can rotate. In this way, by rotating the second end of the flexible member, the opening of the sewage discharge part can be opened or closed through the spiral deformation of the flexible member itself. For example, when the second end rotates circumferentially along the sewage discharge direction relative to the first end, at least part of the area between the first end and the second end of the flexible member undergoes spiral deformation to generate a closed structure. The closed structure gradually narrows with the continuous rotation of the second end relative to the first end until it is completely closed to block the communication between the first end and the second end of the flexible member. When the closed structure formed between the first end and the second end of the flexible member is opened, the dirt on the closed structure can be washed away, so that the accumulation of dirt can be prevented, and further the problem in the related art that when using a flip structure, dirt easily precipitates on the flip structure and affects the normal operation of the valve structure can be solved. By setting a driving mechanism, the second end of the flexible member can be driven to rotate. BRIEF DESCRIPTION OF THE DRAWINGS

[0146] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0147] Figure 1 Exploded structure schematic diagram of a sewage discharge structure provided by an embodiment of the present application;

[0148] Figure 1A Structure schematic diagram of the flexible member of a sewage discharge structure provided by an embodiment of the present application;

[0149] Figure 1B Structure schematic diagram of the flexible member of a sewage discharge structure provided by an embodiment of the present application from another angle;

[0150] Figure 2 Cross-sectional structure schematic diagram of a sewage discharge structure provided by an embodiment of the present application in an open state;

[0151] Figure 3 Cross-sectional structure schematic diagram of a sewage discharge structure provided by an embodiment of the present application in a closed state;

[0152] Figure 4 Structure schematic diagram of the annular frame of a sewage discharge structure provided by an embodiment of the present application;

[0153] Figure 5 Cross-sectional structure schematic diagram of the annular frame of a sewage discharge structure provided by an embodiment of the present application;

[0154] Figure 6 Structural schematic diagram of an annular frame of a sewage discharge structure provided by an embodiment of the present application;

[0155] Figure 7 Structural schematic diagram of a sewage discharge part of a sewage discharge structure provided by an embodiment of the present application;

[0156] Figure 8 Structural schematic diagram of a sewage discharge part of a sewage discharge structure provided by an embodiment of the present application;

[0157] Figure 9 Structural schematic diagram of a sewage discharge part of a sewage discharge structure provided by an embodiment of the present application;

[0158] Figure 10 Cross-sectional structural schematic diagram of a sewage discharge structure provided by an embodiment of the present application;

[0159] Figure 11 Structural schematic diagram of a locking structure and an annular frame of a sewage discharge structure provided by an embodiment of the present application;

[0160] Figure 12 Structural schematic diagram of a locking structure of a sewage discharge structure provided by an embodiment of the present application.

[0161] Description of reference numerals:

[0162] 100 - Sewage discharge structure; 10 - Flexible member; 11 - First end;

[0163] 12 - Second end; 13 - Enclosure structure;

[0164] 20 - Sewage discharge part; 21 - Free end; 22 - Fixed end;

[0165] 23 - Guide chute; 24 - First guide chute; 25 - Second guide chute;

[0166] 241 - Transition surface; 26 - Inclined section; 27 - Horizontal section;

[0167] 28 - Bearing wall; 281 - First mounting part; 282 - Second mounting part;

[0168] 29 - Assembly channel; 291 - Stop rib;

[0169] 30 - Annular frame; 31 - Gear ring; 311 - Assembly groove;

[0170] 32 - Rotating frame; 321 - Slide block; 322 - Protrusion;

[0171] 323 - First slide block;

[0172] 324 - Second slider; 3241 - First side; 3242 - Second side;

[0173] 40 - Driving mechanism; 41 - Driving gear; 42 - Transmission shaft;

[0174] 43 - Limit block; 44 - First elastic member; 45 - Driving motor;

[0175] 50 - Locking structure; 51 - Locking member; 511 - Fixed portion;

[0176] 512 - Extension arm; 513 - Locking portion; 5131 - Guide surface;

[0177] 5132 - Side wall; 52 - Second elastic member. Detailed implementation manners

[0178] In order to make the above - mentioned objects, features, and advantages of the embodiments of the present application more obvious and understandable, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the scope of protection of the present application.

[0179] The sewage discharge structure, sewage tank, cleaning device, and cleaning system provided by the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0180] As Figure 1 shown, the embodiment of the present application provides a sewage discharge structure 100, which can be applied to a cleaning device, for example, can be arranged on a sewage tank. Among them, the sewage discharge structure 100 can include a sewage discharge portion 20, a flexible member 10, and a driving mechanism 40.

[0181] Exemplarily, the sewage discharge portion 20 can be a cylindrical structure, and the cylindrical structure can have a certain height. The first end 11 of the flexible member 10 can be fixedly connected to the sewage discharge portion 20 from the inside of the sewage discharge portion 20, and the second end 12 of the flexible member 10 extends along the sewage discharge direction to outside the opening.

[0182] In the embodiment of the present application, an opening is formed at the sewage discharge portion 20. It should be noted that the sewage discharge portion 20 is arranged on the cleaning device. For example, it can be arranged on the sewage tank of the cleaning device. Among them, one end of the sewage discharge portion 20 can be connected to the sewage tank of the cleaning device, and the other end extends in a direction away from the sewage tank, and an opening is formed at the end of the sewage discharge portion 20 away from the sewage tank. For the convenience of description, the end of the sewage discharge portion 20 connected to the cleaning device can be used as the fixed end 22, and the end where the opening is formed can be used as the free end 21.

[0183] When the opening is open, the sewage discharge structure 100 can let water in or out. When the opening is closed, the sewage discharge structure 100 cannot let water in or drain. Among them, the fixed end 22 of the sewage discharge part 20 is used to fix the sewage discharge part 20, so that the sewage discharge structure 100 can be fixedly connected to structures such as a sewage tank. Exemplarily, the sewage discharge part 20 of the sewage discharge structure 100 can be integrally formed on structures such as a sewage tank. In the implementation of this application, the structure of the sewage tank will not be further described.

[0184] Combined with Figure 1 and Figure 2 As shown, the flexible member 10 can include a first end 11 and a second end 12. The first end 11 is connected to the opening, and the second end 12 extends along the sewage discharge direction.

[0185] It should be noted that the sewage discharge direction refers to the direction in which sewage flows in the sewage discharge part, that is, the axial direction of the flexible member 10 or the sewage discharge part 20. The circumferential direction of the sewage discharge direction refers to the direction around the sewage discharge direction for one week, that is, the circumferential direction of the flexible member 10 or the sewage discharge part 20.

[0186] Exemplarily, the flexible member 10 can be a cylindrical structure, and the flexible member 10 is arranged around the sewage discharge part 20. Among them, a part of the structure of the flexible member 10 is arranged inside the sewage discharge part 20, and the first end 11 of the flexible member 10 is fixedly arranged inside the sewage discharge part 20. The second end 12 of the flexible member 10 extends along the axial direction of the sewage discharge part 20 towards the direction close to the free end 21. Among them, the flexible member 10 located outside the sewage discharge part 20 is movably connected to the sewage discharge part 20.

[0187] In some embodiments, as Figure 1 shown, the second end 12 of the flexible member 10 can extend along the axial direction of the sewage discharge part 20 towards the direction close to the free end 21 to the outside of the sewage discharge part 20.

[0188] In some other embodiments, as Figure 1A , Figure 1B and Figure 2 shown, the second end 12 of the flexible member 10 can extend along the axial direction of the sewage discharge part 20 towards the direction close to the free end 21 and turn outwards at the opening to the outside of the sewage discharge part 20. Among them, the flexible member 10 located outside the sewage discharge part 20 is movably connected to the sewage discharge part 20. This can reduce the size of the sewage discharge part 20 in the axial direction, reduce the occupied space of the sewage discharge structure 100, and is conducive to the miniaturization development of the sewage discharge structure 100.

[0189] The driving mechanism 40 is drivingly connected to the second end 12 of the flexible member 10. The driving mechanism 40 is used to drive the second end 12 to rotate circumferentially along the sewage discharge direction, so that the flexible member 10 is helically deformed to open or close the opening.

[0190] The sewage discharge structure 100 provided by the embodiments of the present application can provide a sewage discharge port for the sewage discharge structure 100 through the sewage discharge part 20, provide an installation position for the installation of the flexible member 10, and support the flexible member 10.

[0191] By providing the flexible member 10, arranging the flexible member 10 around the sewage discharge part 20, and fixing the first end 11 of the flexible member 10, the second end 12 can rotate. Since the flexible member 10 is relatively soft and elastic, rotating the two ends of the flexible member 10 can close the hole in the middle of the flexible member 10 (as Figure 3 shown). And a closed structure 13 is formed between the first end 11 and the second end 12 of the flexible member 10, so that the first end 11 and the second end 12 of the flexible member 10 are no longer connected.

[0192] Among them, the closed structure 13 formed in the middle of the flexible member 10 refers to a partial structure between the first end 11 and the second end 12 of the flexible member 10. Due to rotation, multiple radially inwardly folded wrinkles are generated, and multiple inwardly folded wrinkles are spirally wound together to form the closed structure 13.

[0193] When the hole in the middle of the flexible member 10 is closed, the opening of the sewage discharge part 20 can be closed. At this time, the sewage discharge part 20 cannot communicate with the outside world, and the closed structure 13 is formed.

[0194] It should be noted that the closed structure is a structure generated at both ends of the flexible member 10 when the flexible member 10 is rotated, and its structural shape is not fixed and changes with the rotation direction and rotation stroke of the flexible member 10. Exemplarily, the second end 12 rotates circumferentially along the sewage discharge direction relative to the first end 11, and at least part of the area between the first end 11 and the second end 12 of the flexible member 10 is spirally deformed to generate the closed structure 13. The closed structure 13 gradually narrows with the continuous rotation of the second end 12 relative to the first end 11 until it is completely closed to block the connection between the first end 11 and the second end 12 of the flexible member 10.

[0195] When it is necessary to communicate the sewage discharge part 20 with the outside world, the second end 12 of the flexible member 10 can be rotated in the direction opposite to the rotation direction when closing the opening. In this way, the closed structure 13 formed between the first end 11 and the second end 12 of the flexible member 10 can be gradually opened, so that the first end 11 and the second end 12 of the flexible member 10 are connected, that is, the opening of the sewage discharge part 20 is opened. When the second end 12 of the flexible member 10 is the farthest from the free end 21 of the sewage discharge part 20, the opening in the middle of the flexible member 10 is the largest. At this time, the opening of the sewage discharge part 20 is completely opened (as Figure 2 shown).

[0196] In the sewage discharge structure 100 in the implementation of this application, the opening of the sewage discharge part 20 can be opened or closed through the deformation of the flexible member 10 itself. And when the closed structure 13 formed between the first end 11 and the second end 12 is opened, the dirt on the closed structure 13 can be washed away, so the accumulation of dirt can be prevented, thereby solving the problem in the related art that when using a flip structure, dirt is likely to precipitate on the flipping structure, affecting the normal operation of the valve structure. By setting the driving mechanism 40, the second end 12 of the flexible member 10 can be driven to rotate. By arranging the second end 12 of the flexible member 10 outside the sewage discharge part 20, it is convenient to drive the second end 12 of the flexible member 10 to rotate.

[0197] In a possible implementation manner, the flexible member 10 can be an integral structure.

[0198] With such a setting, the sealing performance of the flexible member 10 can be improved, and the structural strength of the flexible member 10 can be enhanced, preventing the flexible member 10 from cracking when the flexible member 10 rotates, thereby extending the service life of the flexible member 10.

[0199] In a possible implementation manner, when the opening is opened to the maximum, the length of the flexible member 10 outside the free end 21 of the sewage discharge part 20 is greater than or equal to the radius of the opening.

[0200] With such a setting, when the second end 12 of the flexible member 10 is closest to the free end 21 of the sewage discharge part 20, there is enough length of the flexible member 10 to close the hole in the middle of the flexible member 10 through rotational deformation, improving the sealing effect, and then closing the opening of the sewage discharge part 20.

[0201] Of course, in other embodiments, the length of the flexible member 10 can also be set to other values. For example, it can be approximately equal to the circumference of the opening, or it can be less than the radius of the opening. Since the flexible member 10 has elasticity, the opening can also be closed. Therefore, in the implementation of this application, the length of the flexible member 10 is not further limited.

[0202] It should be noted that as Figure 3 shown, the partial structure of the flexible member 10 located inside the sewage discharge part 20 and close to the fixed end 22 of the sewage discharge part 20 can be fixedly connected to the inner wall of the sewage discharge part 20, which can increase the connection stability between the flexible member 10 and the sewage discharge part 20 and prevent the flexible member 10 from falling off the sewage discharge part 20 when the flexible member 10 is stressed.

[0203] In a possible implementation manner, the flexible member 10 can be a soft rubber structure. Of course, it can also be a structural member made of other materials. For example, it can be a silicone rubber part, etc. In the embodiments of this application, the material of the flexible member 10 is not further limited.

[0204] With such a setting, the flexibility of the flexible member 10 can be better, preventing problems such as fracture of the flexible member 10 during repeated rotational deformation, thereby extending the service life of the flexible member 10. In addition, the soft rubber structure has a lower cost, which can reduce the cost of the sewage discharge structure 100.

[0205] In a possible implementation, the first end 11 of the flexible member 10 is fixedly connected to the inner side of the fixed end 22 of the sewage discharge part 20.

[0206] With such a setting, it is convenient to fixedly connect the flexible member 10 to the sewage discharge part 20. Because the fixed end 22 of the sewage discharge part 20 has a larger assembly space relative to the inner wall of the sewage discharge part 20. Compared with connecting the first end 11 of the flexible member 10 to the inner wall of the sewage discharge part 20, connecting to the fixed end 22 of the sewage discharge part 20 can reduce the assembly difficulty and improve the connection stability between the flexible member 10 and the sewage discharge part 20, thereby extending the service life of the sewage discharge structure 100.

[0207] Of course, in some embodiments, the first end 11 of the flexible member 10 can also be connected to the inner wall of the sewage discharge part 20, which can reduce the amount of the flexible member 10 used and thus save costs.

[0208] Exemplarily, the connection manner between the first end 11 of the flexible member 10 and the sewage discharge part 20 can be plug-in connection, bonding, etc. In the embodiments of the present application, the connection manner between the first end 11 of the flexible member 10 and the sewage discharge part 20 is not further limited.

[0209] In a possible implementation, when the second end 12 of the flexible member 10 is farthest from the fixed end 22 of the sewage discharge part 20, that is, when the second end 12 of the flexible member 10 is farthest from the opening, the opening is in a fully open state. When the second end 12 of the flexible member 10 is closest to the free end 21 of the sewage discharge part 20, that is, when the second end 12 of the flexible member 10 is closest to the opening, the opening is completely closed.

[0210] It should be noted that the fully open state of the opening means that the opening is at its maximum size, that is, the state where the flexible member 10 is tightened. The fully closed state of the opening means that there is no gap in the opening and the two ends of the opening in the axial direction are sealed.

[0211] With such a setting, the space outside the sewage discharge part 20 can be fully utilized. That is to say, on the premise of ensuring that the opening of the sewage discharge part 20 can be closed, the axial dimension of the sewage discharge part 20 is minimized. This can save the space occupied by the sewage discharge part 20, is beneficial to the miniaturization development of the sewage discharge structure 100, and can save materials and reduce costs.

[0212] In a possible implementation, continue to refer to Figure 1 and Figure 2As shown, the sewage discharge structure 100 includes an annular frame 30, wherein the annular frame 30 is fixedly connected to the second end 12 of the flexible member 10. The side of the annular frame 30 facing the sewage discharge part 20 is movably connected to the sewage discharge part 20, and the side of the annular frame 30 facing away from the sewage discharge part 20 is drivingly connected to the driving mechanism 40. The driving mechanism 40 is used to drive the annular frame 30 to rotate along the circumference of the sewage discharge part 20.

[0213] In this way, the second end 12 of the flexible member 10 can be conveniently fixed and connected. In addition, the connection between the driving mechanism 40 and the sewage discharge part 20 can also be achieved. The second end 12 of the flexible member 10 is driven to rotate along the circumferential direction of the sewage discharge part 20 and move along the axial direction of the sewage discharge part 20.

[0214] Exemplarily, a gear ring 31 is provided on one side of the annular frame 30 away from the sewage discharge portion 20. The driving mechanism 40 can be drivingly connected to the annular frame 30 through a gear change. By providing the gear ring 31 on the outer side of the annular frame 30, it is convenient to drive the driving mechanism 40 to the annular frame 30, and the driving connection is realized by gear meshing, which is convenient for driving and can also simplify the driving mechanism 40.

[0215] In a possible implementation, one of the sewage discharge part 20 and the annular frame 30 is provided with a guide slot 23, and the other of the sewage discharge part 20 and the annular frame 30 is provided with a slider 321 that cooperates with the guide slot 23. The slider 321 is connected with the guide slot 23, and when the annular frame 30 rotates along the circumference of the sewage discharge part 20, the slider 321 moves along the guide slot 23 in the axial direction of the sewage discharge part 20.

[0216] With such arrangement, when the annular frame 30 rotates along the circumference of the sewage discharge part 20, the slider 321 moves along the guide slot 23 in the axial direction of the sewage discharge part 20, thereby driving the second end 12 of the flexible member 10 to move along the axial direction of the sewage discharge part 20, and rotating along the circumference of the sewage discharge part 20 at the same time, so that the second end 12 of the flexible member 10 rotates and deforms, and the opening is opened or closed. In addition, the structure of the guide slot 23 and the slider 321 is relatively simple, which can reduce the processing difficulty of the sewage discharge structure 100, thereby reducing the cost.

[0217] In some embodiments, Figure 1 As shown, the guide chute 23 can be arranged outside the sewage discharge portion 20. Figure 4As shown, the slider 321 is arranged on the side of the annular frame 30 facing the sewage discharge part 20. Compared with the arrangement of the guide slot 23 on the annular frame 30, the annular frame 30 can be reduced in the axial direction, making the structure of the annular frame 30 smaller and lighter, which can reduce the driving force when the annular frame 30 rotates, that is, it is easier to drive, so that a driving mechanism 40 with less power can be selected, thereby saving energy. In addition, if the annular frame 30 is grooved, the annular frame 30 needs to be made thicker, which will increase the weight of the annular frame 30 and is not conducive to driving.

[0218] Of course, in some other embodiments, the slider 321 may be arranged outside the sewage discharge part 20. The guide slot 23 is arranged on the side of the annular frame 30 facing the sewage discharge part 20. In the embodiment of the present application, the arrangement positions of the guide slot 23 and the slider 321 are not further described.

[0219] The structures of the sliding block 321 and the guiding groove 23 are further described below.

[0220] Continue to see Figure 4 As shown, the annular frame 30 includes a gear ring 31 and a rotating frame 32 , wherein the gear ring 31 is disposed around the outer side of the rotating frame 32 , and the gear ring 31 is fixedly connected to the rotating member, and the rotation of the gear ring 31 can drive the rotating frame 32 to rotate.

[0221] Exemplarily, the rotating frame 32 and the gear ring 31 are snap-connected, a protrusion 322 is provided on the outer side of the rotating frame 32, and an assembly groove 311 that cooperates with the protrusion 322 is provided on the inner side of the gear ring 31, wherein the protrusion 322 is snap-fitted in the assembly groove 311, so that when the gear rotates, it can drive the rotating frame 32 to rotate.

[0222] In some embodiments, the gear of the assembly groove 311 in the circumferential direction of the gear ring 31 can be set larger than the size of the protrusion 322 in the axial direction of the gear ring 31, so that a certain idling time can be given to the gear ring 31, that is, when the gear ring 31 starts to rotate, the rotating frame 32 does not move. When the gear ring 31 rotates to abut against the protrusion 322, it drives the rotating frame 32 to rotate together. In this way, a certain buffer space can be given to the driving mechanism 40 to prevent excessive driving force when opening, which may cause damage to the driving mechanism 40 or the gear ring 31.

[0223] Exemplarily, the second end 12 of the flexible member 10 may be sandwiched between the gear ring 31 and the rotating frame 32 and fixedly connected to at least one of the gear ring 31 or the rotating frame 32 , so that the rotation of the annular frame 30 may drive the second end 12 of the flexible member 10 to rotate.

[0224] Of course, in some embodiments, the annular frame 30 can also be set as an integral structure. Among them, the second end 12 of the flexible member 10 is fixedly connected to the annular frame 30. For example, it can be bonded, injection molded, etc. In the embodiments of the present application, the structure of the annular frame 30 and the connection manner between the annular frame 30 and the second end 12 of the flexible member 10 are not further limited.

[0225] In a possible implementation manner, the number of the guiding chutes 23 can be multiple. Among them, the multiple guiding chutes 23 are arranged at intervals along the circumferential direction of the sewage discharge part 20, and the inclination directions of the inclined sections 26 of the multiple guiding chutes 23 are the same. Each guiding chute 23 is fitted with a slider 321.

[0226] With such a setting, the force balance in the circumferential direction of the annular frame 30 can be improved, the swaying of the annular frame 30 can be reduced, the annular frame 30 can be prevented from tipping over, and problems such as jamming during the movement of the annular frame 30 can also be prevented.

[0227] In some embodiments, at least part of the structures of the multiple guiding chutes 23 overlap each other in the circumferential direction of the sewage discharge part 20. With such a setting, without increasing the size of the sewage discharge part 20, the length of the guiding chutes 23 can be extended, so as to ensure that the second end 12 of the flexible member 10 has sufficient space for rotational deformation, make the channel in the middle of the flexible member 10 close fully, improve the sealing performance, and is beneficial to the miniaturization development of the sewage discharge structure 100.

[0228] Of course, in some other embodiments, the number of the guiding chutes 23 and the sliders 321 can also be set to one, which can simplify the structure of the sewage discharge structure 100 and reduce the cost.

[0229] Hereinafter, an example in which the number of the guiding chutes 23 and the sliders 321 is two will be described.

[0230] As Figure 4 shown, two sliders 321 are provided on the inner side of the annular frame 30, and one of the two sliders 321 is configured as the first slider 323. The other of the two sliders 321 is configured as the second slider 324, and the first slider 323 and the second slider 324 are arranged at an interval of 180° along the circumferential direction of the sewage discharge part 20.

[0231] With such a setting, the force balance during the movement of the annular frame 30 can be improved, the stability of the annular frame 30 during movement can be enhanced, the swaying of the annular frame 30 can be reduced, the annular frame 30 can be prevented from tipping over, and problems such as jamming during the movement of the annular frame 30 can also be prevented. Setting two sliders 321 and guiding chutes 23 can improve the stability of the annular frame 30 during movement, and can also simplify the structure of the sewage discharge structure 100 and reduce the cost.

[0232] It should be noted that the first slider 323 and the second slider 324 being spaced 180° along the circumferential direction of the sewage discharge part 20 refers to their positions within a certain error range. For example, the first slider 323 and the second slider 324 can be spaced between 170° and 190° along the circumferential direction of the sewage discharge part 20, and both are regarded as being spaced 180°. In some embodiments, the positions of the first slider 323 and the second slider 324 can also be set at other positions. In the embodiments of the present application, the setting positions of the first slider 323 and the second slider 324 are not further limited.

[0233] As Figure 5 shown, the shapes of the first slider 323 and the second slider 324 are different. Among them, the dimension of the first slider 323 in the axial direction of the sewage discharge part 20 is greater than the dimension of the second slider 324 in the axial direction of the sewage discharge part 20. With such a setting, the shapes of the guiding chutes 23 corresponding to the first slider 323 and the second slider 324 can be different, preventing the first slider 323 from sliding into the guiding chute 23 of the second slider 324 and causing the sewage discharge structure 100 to malfunction. Additionally, this can also improve the design flexibility of the sewage discharge structure 100.

[0234] Exemplarily, as Figure 6 shown, the first slider 323 has a quadrilateral structure, and all four corners of the first slider 323 are arc structures. With such a setting, the resistance of the first slider 323 in the guiding chute 23 can be reduced, enabling the first slider 323 to move more smoothly in the guiding chute 23, preventing situations such as jamming, and also reducing the wear of the first slider 323 and the guiding chute 23, thereby extending the service life of the sewage discharge structure 100.

[0235] Continuing to refer to Figure 4 shown, the second slider 324 includes a first side surface 3241 and a second side surface 3242, where the first side surface 3241 and the second side surface 3242 are axially opposite to each other along the annular frame 30. In the circumferential direction of the annular frame 30, both ends of the first side surface 3241 extend towards the two ends of the second side surface 3242, and both ends of the second side surface 3242 extend towards the two ends of the first side surface 3241, and an arc surface is provided at the connection between the first side surface 3241 and the second side surface 3242. With such a setting, the shapes of the first slider 323 and the second slider 324 can be different. Additionally, the resistance of the second slider 324 in the guiding chute 23 can be reduced, enabling the second slider 324 to move more smoothly in the guiding chute 23, preventing situations such as jamming, and also reducing the wear of the second slider 324 and the guiding chute 23, thereby extending the service life of the sewage discharge structure 100.

[0236] As Figure 4 shown, the second slider 324 has an overall elliptical structure.

[0237] Of course, in some other embodiments, the first slider 323 and the second slider 324 may also be configured in other structures. In the embodiments of the present application, the shapes of the first slider 323 and the second slider 324 are not further limited.

[0238] The structure of the guiding chute 23 will be described below with reference to the accompanying drawings.

[0239] As Figure 7 shown, two guiding chutes 23 may be provided outside the sewage discharge portion 20. Among them, the first guiding chute 24 is for cooperating with the first slider 323, and the second guiding chute 25 is for cooperating with the second slider 324. The first guiding chute 24 and the second guiding chute 25 are arranged at an interval of 180° along the circumferential direction of the sewage discharge portion 20.

[0240] With such an arrangement, the two guiding chutes 23 can be evenly distributed outside the sewage discharge portion 20, improving the force balance during the movement of the annular frame 30, enhancing the stability of the annular frame 30 during movement, reducing the shaking of the annular frame 30, preventing the annular frame 30 from tipping over, and also preventing problems such as jamming during the movement of the annular frame 30. Setting two sliders 321 and guiding chutes 23 can improve the stability of the annular frame 30 during movement, and can also simplify the structure of the sewage discharge structure 100 and reduce costs.

[0241] It should be noted that the fact that the first guiding chute 24 and the second guiding chute 25 are arranged at an interval of 180° along the circumferential direction of the sewage discharge portion 20 refers to their positions within a certain error range. For example, the first guiding chute 24 and the second guiding chute 25 may be arranged at an interval between 170° and 190° along the circumferential direction of the sewage discharge portion 20, and both are regarded as being arranged at an interval of 180°. In some embodiments, the positions of the first guiding chute 24 and the second guiding chute 25 may also be set at other positions. In the embodiments of the present application, the setting positions of the first guiding chute 24 and the second guiding chute 25 are not further limited.

[0242] The following will take the first guiding chute 24 as an example for description.

[0243] As Figure 7 shown, the guiding chute 23 includes an inclined section 26. Among them, the inclined section 26 is spirally arranged along the circumferential direction of the sewage discharge portion 20, and both ends extend towards the fixed end 22 and the free end 21 of the sewage discharge portion 20 respectively. The inclined section 26 is used to guide the slider 321 to move along the axial direction of the sewage discharge portion 20. With such an arrangement, the slider 321 can move along the axial direction of the sewage discharge portion 20 while rotating. This simplifies the structure of the guiding chute 23 and reduces the processing cost.

[0244] Exemplarily, the guiding chute 23 further includes a horizontal section 27. The horizontal section 27 communicates with the inclined section 26. The horizontal section 27 is arranged along the circumferential direction of the sewage discharge part 20, and the plane where the horizontal section 27 is located is perpendicular to the central axis of the sewage discharge part 20.

[0245] With such an arrangement, when the second end 12 of the flexible member 10 is within the horizontal section 27, it can only rotate along the circumferential direction of the sewage discharge part 20 and does not move along the axial direction of the sewage discharge part 20. In this way, the distance that the second end 12 of the flexible member 10 moves in the axial direction of the sewage discharge part 20 can be fixed, preventing the second end 12 of the flexible member 10 from detaching from the sewage discharge part 20. Additionally, after the flexible member 10 moves to a specific position, there is sufficient space for rotational deformation, enabling the channel in the middle of the flexible member 10 to be fully closed, thus enhancing the sealing performance.

[0246] It should be noted that when the guiding chute 23 is located on the sewage discharge part 20, the horizontal section 27 is at one end of the guiding chute 23 close to the free end 21 of the sewage discharge part 20. When the guiding chute 23 is located on the annular frame 30, the horizontal section 27 is at one end of the guiding chute 23 close to the fixed end 22 of the sewage discharge part 20.

[0247] With such an arrangement, when closing the opening of the sewage discharge part 20, it can ensure that the second end 12 of the flexible member 10 has sufficient space for rotational deformation, enabling the channel in the middle of the flexible member 10 to be fully closed, thus enhancing the sealing performance.

[0248] In a possible implementation manner, the length of the horizontal section 27 in the circumferential direction of the sewage discharge part 20 is greater than or equal to one - half of the circumference of the sewage discharge part 20 and less than the circumference of the sewage discharge part 20. Of course, in other embodiments, the length of the horizontal section 27 can also be other values. In the embodiments of the present application, no further limitation is imposed on the length of the horizontal section 27.

[0249] With such an arrangement, it can ensure that the second end 12 of the flexible member 10 has sufficient space for rotational deformation, enabling the channel in the middle of the flexible member 10 to be fully closed, thus enhancing the sealing performance. It can also prevent the horizontal section 27 from forming a closed loop, preventing the annular frame 30 from continuously rotating in the horizontal section 27, which may damage the flexible member 10 or cause the opening of the sewage discharge structure 100 to be unable to be closed after being opened.

[0250] In a possible implementation manner, the sewage discharge structure 100 further includes an assembly channel 29. The assembly channel 29 communicates with the guiding chute 23 and is used for the slider 321 to be connected with the guiding chute 23 in a matching manner.

[0251] With such an arrangement, it is convenient to assemble the annular frame 30 with the sewage discharge part 20 that is provided with the slider 321 or the slide rail, reducing the assembly difficulty.

[0252] Exemplarily, refer to Figure 7As shown, when the sewage discharge part 20 is arranged outside the guiding chute 23, the assembly channel 29 is arranged outside the sewage discharge part 20, and one end of the assembly channel 29 facing the guiding chute 23 is communicated with the guiding chute 23.

[0253] In a possible implementation manner, the assembly channel 29 includes a stop convex edge 291, wherein the stop convex edge 291 is located at one end of the assembly channel 29 close to the guiding chute 23. The positive projections of the stop convex edge 291 and the slider 321 in the axial direction of the sewage discharge part 20 at least partially overlap, and the stop convex edge 291 is used to limit the slider 321 from falling off the assembly channel 29.

[0254] With such a setting, when the slider 321 faces the assembly channel 29, it can be prevented from detaching from the guiding chute 23 at the assembly channel 29, ensuring the stable cooperation between the slider 321 and the guiding chute 23.

[0255] Exemplarily, in the direction from the free end 21 to the fixed end 22 of the sewage discharge part 20, the stop convex edge 291 gradually protrudes towards the outside of the sewage discharge part 20 from any position in the assembly channel 29, so that the positive projections of the stop convex edge 291 and the slider 321 in the axial direction of the sewage discharge part 20 at least partially overlap.

[0256] As Figure 8 shown, a partial horizontal section 27 of the second guiding chute 25 extends into the horizontal section 27 of the first guiding chute 24. Among them, the dimension of the horizontal section 27 of the first guiding chute 24 in the axial direction of the sewage discharge part 20 is larger than the dimension of the horizontal section 27 of the second guiding chute 25 in the axial direction of the sewage discharge part 20. The depth of the horizontal section 27 of the second guiding chute 25 in the radial direction of the sewage discharge part 20 is larger than the depth of the horizontal section 27 of the first guiding chute 24 in the radial direction of the sewage discharge part 20.

[0257] With such a setting, without increasing the size of the sewage discharge part 20, the lengths of the horizontal sections 27 of the first guiding chute 24 and the second guiding chute 25 can be extended, ensuring that the second end 12 of the flexible part 10 has sufficient space for rotational deformation, enabling the channel in the middle of the flexible part 10 to be fully closed, improving the sealing performance, and being conducive to the miniaturization development of the sewage discharge structure 100. In addition, by setting the dimensions of the horizontal section 27 of the first guiding chute 24 and the horizontal section 27 of the second guiding chute 25 differently, it can be prevented that the first guiding chute 24 and the second guiding chute 25 are communicated, so that the horizontal sections 27 of the first guiding chute 24 and the second guiding chute 25 form a closed loop, thereby preventing the annular frame 30 from being damaged due to continuous rotation of the flexible part 10. It can also prevent the first slider 323 from sliding into the guiding chute 23 of the second slider 324, resulting in the sewage discharge structure 100 being unable to be used normally.

[0258] As Figure 9As shown, a partial horizontal section 27 of the first guiding chute 24 extends into the horizontal section 27 of the second guiding chute 25. And a partial horizontal section 27 of the first guiding chute 24 passes through the transition position between the inclined section 26 and the horizontal section 27 of the second guiding chute 25. A transition surface 241 is provided at the intersection position of the first guiding chute 24 and the second guiding chute. The transition surface 241 is an inclined surface, which can make the first slider 323 pass smoothly without jamming problems.

[0259] Of course, in other embodiments, the slider 321 and the guiding chute 23 can also be set to other structures, which can be specifically set according to specific situations and will not be further limited in the embodiments of the present application.

[0260] It should be noted that the structure of the guiding chute 23 when it is provided on the annular frame 30 can be the same as the structure when it is provided on the sewage discharge part 20. For details, reference can be made to the description in the above embodiments. In the embodiments of the present application, the structure of the guiding chute 23 provided on the annular frame 30 and the slider 321 provided on the sewage discharge part 20 will not be further described.

[0261] The driving mechanism 40 will be described below with reference to the accompanying drawings.

[0262] As Figure 10 shown, the driving mechanism 40 may include a driving gear 41. Among them, the central axis of the driving gear 41 is parallel to the central axis of the annular frame 30. The driving gear 41 is meshed and connected with the gear ring 31 of the annular frame 30. In the axial direction of the sewage discharge part 20, the driving gear 41 is slidably connected with the gear ring 31.

[0263] With such a setting, the driving gear 41 can drive the annular frame 30 to rotate, and the annular frame 30 can also move along the axial direction of the driving gear 41.

[0264] The driving mechanism 40 may further include a driving motor 45. Among them, the driving motor 45 is connected to the driving gear 41, and the driving motor 45 is used to drive the driving gear 41 to rotate. With such a setting, power can be provided for the driving gear 41 to ensure that the driving gear 41 can drive the gear ring 31 to rotate, and then drive the annular frame 30 to rotate.

[0265] In a possible implementation manner, the driving mechanism 40 may further include a transmission shaft 42. Among them, the driving motor 45 is connected to the transmission shaft 42, and one end of the transmission shaft 42 away from the driving motor 45 is connected to the driving gear 41. With such a setting, the driving motor 45 and the driving gear 41 can be indirectly connected, which improves the flexibility of the installation position of the driving mechanism 40. Furthermore, it is convenient to install the driving motor 45 at a suitable position and reduce the assembly difficulty of the driving mechanism 40.

[0266] In a possible implementation, the driving mechanism 40 may further include a limit block 43, wherein the limit block 43 abuts against an end of the driving gear 41 away from the transmission shaft 42. The limit block 43 is used to limit the movement of the driving gear 41 in the axial direction of the driving gear 41. In this way, the movement of the driving gear 41 in the axial direction of the driving gear 41 can be limited, the driving gear 41 is prevented from shaking, and the stability of the driving gear 41 is improved.

[0267] Exemplarily, the fixed end 22 of the sewage discharge part 20 is provided with a bearing wall 28, and the bearing wall 28 extends outward along the circumference of the fixed end 22 of the sewage discharge part 20. Among them, a first mounting portion 281 is provided on the bearing wall 28, and the first mounting portion 281 is used to install the limit block 43. The driving mechanism 40 includes a first elastic member 44, which is compressed and arranged in the first mounting portion 281, and one end of the first elastic member 44 abuts against the first mounting portion 281, and the other end abuts against one end of the limit block 43 away from the driving gear 41.

[0268] Such arrangement can facilitate the assembly of the drive mechanism 40. In addition, by providing the first elastic member 44, the drive mechanism 40 can be conveniently assembled on the first mounting portion 281, and the limit block 43 can be stably connected to the drive gear 41, thereby improving the stability of the drive gear 41.

[0269] In one possible implementation, Figure 11 As shown, the sewage discharge structure 100 may further include a locking structure 50. The locking structure 50 is located outside the free end 21 of the sewage discharge portion 20. When the annular frame 30 is located at the free end 21 of the sewage discharge portion 20, the locking structure 50 is locked and connected with the gear ring 31.

[0270] By setting the locking structure 50, the gear ring 31 can be self-locked after the flexible member 10 closes the opening, that is, the ratchet principle, so that the flexible member 10 can remain in a closed state to prevent the flexible member 10 from rebounding after the driving force of the driving mechanism 40 disappears, causing water leakage.

[0271] In a possible implementation, the locking structure 50 may include a locking member 51, wherein the locking member 51 is provided with a locking portion 513 extending toward the gear ring 31. When the locking structure 50 is locked and connected with the gear ring 31, the locking portion 513 is engaged and connected with the gear ring 31. With such a configuration, the gear ring 31 can be self-locked after the flexible member 10 closes the opening.

[0272] Exemplarily, the fixed end 22 of the drain portion 20 is provided with a bearing wall 28 (not shown in the figure), and the bearing wall 28 extends outward along the circumference of the fixed end 22 of the drain portion 20. The bearing wall 28 is provided with a second mounting portion 282 (see Figure 7As shown in the figure, the second mounting portion 282 is used to mount the locking structure 50. With such a setting, a mounting position can be provided for the locking structure 50 so as to mount the locking structure 50.

[0273] It should be noted that in the embodiments of the present application, the structure of the bearing wall 28 is not further limited and can be specifically set according to specific circumstances.

[0274] Exemplarily, as Figure 12 shown, the locking member 51 may include a fixing portion 511 and an extension arm 512. Among them, in the circumferential direction of the sewage discharge portion 20, the extension arm 512 extends from the fixing portion 511 in a direction away from the fixing portion 511, and the locking portion 513 is provided on the surface of the extension arm 512 facing the sewage discharge portion 20, and the locking portion 513 is spaced apart from the fixing portion 511. The fixing portion 511 is rotatably connected to the second mounting portion 282. In the radial direction of the sewage discharge portion 20, a second elastic member 52 is provided between the extension arm 512 and the second mounting portion 282.

[0275] By rotatably connecting the fixing portion 511 with the second mounting portion 282, the locking portion 513 can be enabled to rotate around the fixing portion 511, that is to say, the extension arm 512 can rotate around the fixing portion 511. In this way, when the gear ring 31 is not subjected to a driving force, the locking portion 513 is engaged with the driving gear 41 to lock the gear ring 31 and prevent the flexible member 10 from rebounding. When the gear ring 31 is subjected to a driving force, the gear ring 31 can push the locking portion 513 to compress the second elastic member 52, and then separate the locking portion 513 from the gear ring 31 so as to open the opening subsequently.

[0276] In a possible implementation manner, a guiding surface 5131 is provided at one end of the locking portion 513 departing from the free end 21 of the sewage discharge portion 20. Among them, in the direction from the locking member 51 to the sewage discharge portion 20, the guiding surface 5131 gradually inclines from the direction of the fixed end 22 close to the sewage discharge portion 20 to the free end 21 of the sewage discharge portion 20.

[0277] With such a setting, when the gear ring 31 moves toward the free end 21 of the sewage discharge portion 20, the gear ring 31 can slide along the guiding surface 5131 so that the locking portion 513 enters between the teeth of the gear ring 31 and is engaged with the gear ring 31. This can reduce the resistance between the locking portion 513 and the gear ring 31, prevent the gear ring 31 from breaking the locking portion 513, and thus extend the service life of the locking portion 513.

[0278] In a possible implementation manner, in the circumferential direction of the sewage discharge portion 20, the locking portion 513 includes two side walls 5132 arranged oppositely. In the direction from the locking member 51 to the sewage discharge portion 20, the two side walls 5132 gradually contract inward.

[0279] With such a setting, when the gear ring 31 rotates, the locking portion 513 can move relative to the gear ring along the side wall 5132, thereby separating the gear ring 31 from the locking portion 513. By setting the side wall 5132 to have a structure in which the two side walls 5132 gradually contract inward in the direction from the locking member 51 to the sewage discharge portion 20, the resistance between the gear ring 31 and the locking portion 513 can be reduced, the wear of the gear ring 31 and the locking portion 513 can be reduced, and thus the service life of the sewage discharge structure 100 can be extended.

[0280] Exemplarily, the first elastic member 44 and the second elastic member 52 can both be spring structures. Of course, in other embodiments, the first elastic member 44 and the second elastic member 52 can also be other elastic structures, such as elastic sheets, etc. In the embodiments of the present application, the structures of the first elastic member 44 and the second elastic member 52 are not further limited.

[0281] The embodiment of the present application also provides a sewage tank, which is applied to a cleaning device. The sewage tank may include the sewage discharge structure in any of the above embodiments. The cleaning device includes a body, and at least part of the driving mechanism of the sewage discharge structure is arranged in the body.

[0282] In the sewage tank in the embodiment of the present application, by setting the above sewage discharge structure, the sewage discharge structure can be opened and closed by rotating the flexible member. Compared with the related art in which a valve with a flipping structure is set, this can prevent the sewage discharge port of the sewage tank from being blocked.

[0283] The embodiment of the present application also provides a cleaning device, including the sewage discharge structure in any of the above embodiments.

[0284] In the cleaning device in the embodiment of the present application, by setting the sewage discharge structure in any of the above embodiments, sewage discharge can be facilitated, and the sewage discharge structure can be opened and closed by rotating the flexible member. Compared with the related art in which a valve with a flipping structure is set, this can prevent the sewage discharge port of the sewage tank from being blocked, improving the user experience.

[0285] It should be noted that the cleaning device in the embodiment of the present application can be a floor washer, and in the embodiment of the present application, the specific structure of the cleaning device is not further limited.

[0286] The embodiment of the present application also provides a cleaning system, including a base station or a pedestal, and the sewage tank in the above embodiment.

[0287] Exemplarily, the cleaning device includes a sewage tank, and the sewage discharge structure is arranged on the sewage tank. When the sewage tank of the cleaning device needs to drain water or be cleaned, the sewage discharge structure can be opened, and when the cleaning device is cleaned, the sewage discharge structure can be closed.

[0288] The cleaning system provided by the embodiments of the present application can facilitate sewage discharge by setting the cleaning device in the above embodiments, and can prevent the problem of dirt accumulation in the sewage discharge structure, improving the user experience.

[0289] The embodiments or implementation manners in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The same or similar parts among the various embodiments can be referred to each other.

[0290] It should be noted that phrases such as "in specific implementation", "in some embodiments", "in this embodiment", "exemplarily", etc. mentioned in the specification indicate that the described embodiments may include specific features, structures or characteristics, but not necessarily every embodiment includes such specific features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. Moreover, when combining a specific feature, structure or characteristic with an embodiment, implementing such a feature, structure or characteristic in combination with other embodiments, whether explicitly or implicitly described, is within the knowledge scope of those skilled in the art.

[0291] Generally speaking, terms should be understood at least in part by their use in the context. For example, at least in part according to the context, the term "one or more" used in the text can be used to describe any feature, structure or characteristic in the sense of a singular, or can be used to describe a combination of features, structures or characteristics in the sense of a plural. Similarly, at least in part according to the context, terms such as "a" or "the" can also be understood as conveying a singular usage or conveying a plural usage.

[0292] It should be easily understood that the terms "on...", "above...", and "over..." in this disclosure should be interpreted in the broadest manner, so that "on..." not only means "directly on something", but also includes the meaning of "on something" with intermediate features or layers therebetween, and "above..." or "over..." not only includes the meaning of "above or over something", but also can include the meaning of "above or over something" with no intermediate features or layers therebetween (i.e., directly on something).

[0293] In addition, for the convenience of description, spatial relative terms can be used in the text, such as "below", "beneath", "under", "above", "over", etc., to describe the relationship of one element or feature relative to other elements or features as shown in the figure. The spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation shown in the drawings. The device can have other orientations (rotated 90 degrees or in other orientations), and the spatial relative descriptive words used in the text can be interpreted accordingly.

[0294] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than limiting them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A sewage discharge structure, applied to cleaning equipment, characterized in that: include: A sewage discharge portion, wherein an opening is formed at the sewage discharge portion; A flexible member, comprising a first end and a second end, wherein the flexible member is a cylindrical structure; The first end is connected to the opening, and the second end extends along the sewage discharge direction; A driving mechanism is drivingly connected to the second end, and the driving mechanism is used to drive the second end to rotate circumferentially along the sewage discharge direction so that the flexible member is spirally deformed to open or close the opening.

2. The sewage discharge structure according to claim 1, characterized in that: The second end rotates circumferentially relative to the first end along the sewage discharge direction, and at least a portion between the first end and the second end of the flexible member is spirally deformed to produce a closed structure.

3. The sewage discharge structure according to claim 2, characterized in that: The closing structure gradually narrows as the second end continues to rotate relative to the first end until it is completely closed to block the communication between the first end and the second end of the flexible member.

4. The sewage discharge structure according to claim 3, characterized in that: The first end of the flexible member is fixedly connected to the inner side of the opening; The second end of the flexible member extends along the sewage discharge direction and turns outward from the opening to the outside of the opening.

5. The sewage discharge structure according to any one of claims 1 to 4, characterized in that: The flexible member is an integrated structure.

6. The sewage discharge structure according to any one of claims 1 to 4, characterized in that: The flexible member is a soft rubber structure.

7. The sewage discharge structure according to any one of claims 1 to 4, characterized in that: When the second end of the flexible member is farthest from the opening, the opening is in a fully open state; When the second end of the flexible member is closest to the opening, the opening is completely closed.

8. The sewage discharge structure according to any one of claims 1 to 4, characterized in that: comprising a ring frame; wherein, The annular frame is fixedly connected to the second end of the flexible member; The annular frame is movably connected to the sewage discharge part, and the sewage discharge part of the annular frame is drivingly connected to the driving mechanism; The driving mechanism is used to drive the annular frame to rotate along the circumference of the sewage discharge part.

9. The sewage discharge structure according to claim 8, characterized in that: A guide slot is provided on one of the sewage discharge part and the annular frame, and a slider matching with the guide slot is provided on the other of the sewage discharge part and the annular frame; wherein, The sliding block is cooperatively connected with the guide slot; When the annular frame rotates along the circumferential direction of the sewage discharge portion, the sliding block rotates along the guide slot in the circumferential direction of the sewage discharge portion and / or moves in the axial direction of the sewage discharge portion.

10. The sewage discharge structure according to claim 9, characterized in that: The guide chute includes an inclined section; wherein, The inclined section is spirally arranged along the circumference of the sewage discharge portion, and two ends thereof extend toward two axial ends of the sewage discharge portion respectively; The inclined section is used to guide the sliding block to rotate along the circumferential direction of the sewage discharge portion and to move along the axial direction of the sewage discharge portion.

11. The sewage discharge structure according to claim 10, characterized in that: The guide chute also includes a horizontal section; wherein, The horizontal section is in communication with the inclined section; The horizontal section is arranged along the circumference of the sewage discharge portion, and the plane where the horizontal section is located is perpendicular to the central axis of the sewage discharge portion; The horizontal section is used to guide the sliding block to rotate along the circumference of the sewage discharge portion.

12. The sewage discharge structure according to claim 10 or 11, characterized in that: The number of the guide slots is multiple; wherein, The plurality of guide chute grooves are arranged at intervals along the circumference of the sewage discharge portion, and the inclined directions of the inclined sections of the plurality of guide chute grooves are the same; Each of the guide slide grooves is matched with a sliding block.

13. The sewage discharge structure according to claim 12, characterized in that: At least partial structures of the plurality of guide slots overlap each other in the circumferential direction of the sewage discharge portion.

14. The sewage discharge structure according to any one of claims 9 to 11, characterized in that: The guide chute is arranged on the outside of the sewage discharge part; The sliding block is arranged on a side of the annular frame facing the sewage discharge portion.

15. The sewage discharge structure according to claim 8, characterized in that: A gear ring is provided on a side of the annular frame facing away from the sewage discharge portion.

16. The sewage discharge structure according to claim 15, characterized in that: The driving mechanism comprises a driving gear; wherein, The driving gear is meshingly connected with the gear ring of the annular frame; In the axial direction of the sewage discharge portion, the driving gear is slidably connected to the gear ring.

17. The sewage discharge structure according to claim 16, characterized in that: The driving mechanism includes a driving motor; wherein, The driving motor is connected to the driving gear, and the driving motor is used to drive the driving gear to rotate.

18. The sewage discharge structure according to claim 17, characterized in that: The driving mechanism comprises a transmission shaft; wherein, The driving motor is connected to the transmission shaft, and one end of the transmission shaft away from the driving motor is connected to the driving gear.

19. The sewage discharge structure according to claim 18, characterized in that: The driving mechanism includes a limit block; wherein, The limit block abuts against an end of the driving gear away from the transmission shaft; The limiting block is used to limit the movement of the driving gear in the axial direction of the driving gear.

20. The sewage discharge structure according to claim 19, characterized in that: A bearing wall is provided at one end of the sewage discharge portion, and the bearing wall extends outward along the circumference of the sewage discharge portion; wherein, A first mounting portion is provided on the bearing wall, and the first mounting portion is used to mount the limit block; The driving mechanism comprises a first elastic member, which is compressed and arranged in the first mounting portion, and one end of the first elastic member abuts against the first mounting portion, and the other end abuts against an end of the limit block away from the driving gear.

21. The sewage discharge structure according to any one of claims 15 to 20, characterized in that: Also includes a locking structure; wherein, The locking structure is located outside the opening of the sewage discharge portion; When the opening is closed, the locking structure is locked and connected to the gear ring.

22. The sewage discharge structure according to claim 21, characterized in that: The locking structure includes a locking member; wherein, The locking member is provided with a locking portion extending toward the gear ring; When the locking structure is locked and connected with the gear ring, the locking portion is clamped and connected with the gear ring.

23. A sewage tank, used in cleaning equipment, characterized in that: The sewage discharge structure comprises any one of claims 1 to 22; wherein: The cleaning device comprises a body, and at least a part of the structure of the driving mechanism of the sewage discharge structure is arranged on the body.

24. A cleaning device, characterized in that: Comprising the sewage tank as described in claim 23 above.

25. A cleaning system, characterized in that: It comprises a base station or a pedestal, and the cleaning device according to claim 24.

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