Valve assembly, water storage device and cleaning robot

Abstract

The invention relates to the technical field of cleaning equipment, and discloses a valve assembly, a water storage device and a cleaning robot, and the valve assembly comprises a valve body, a valve element and a supporting part. The valve body is provided with a fluid channel which is provided with an inlet end and an outlet end which are communicated with each other. The valve element is arranged in the fluid channel and comprises an elastic sealing part, and the elastic sealing part can deform in a reciprocating mode in the fluid flowing direction. The supporting part is arranged in the fluid channel and located on the side, away from the inlet end, of the elastic sealing part, and the supporting part and the elastic sealing part are arranged at intervals at a first preset interval. Through the arrangement, the situation that the fluid flow difference is large due to the fact that deformation of the elastic sealing part is too large can be effectively avoided, and the fluid flowing out of the outlet end is kept at a certain flow.

Description

Technical Field

[0001] The present disclosure relates to the technical field of cleaning equipment, and in particular to a valve assembly, a water storage device and a cleaning robot. Background Art

[0002] At present, the pipeline connected to the water tank of the cleaning robot is usually unidirectionally connected or blocked by opening and closing the pump body, thereby realizing the unidirectional flow of water or air in the pipeline and preventing the backflow of water or air in the pipeline.

[0003] However, due to the poor stability of the pump output and the low control accuracy of the pump, the water flow or air flow in the pipeline is prone to being too large. Summary of the invention

[0004] The embodiments of the present disclosure aim to provide a valve assembly, a water storage device and a cleaning robot to solve the technical problem in the prior art that the water flow or air flow in the pipe of the water tank of the cleaning robot is prone to being too large.

[0005] In a first aspect, an embodiment of the present disclosure provides a valve assembly, the valve assembly comprising:

[0006] A valve body, wherein the valve body is provided with a fluid passage, and the fluid passage has an inlet end and an outlet end which are interconnected;

[0007] A valve core is disposed in the fluid channel, and the valve core includes an elastic sealing portion, and the elastic sealing portion can be reciprocated and deformed along the fluid flow direction; and

[0008] A support portion, the support portion is disposed in the fluid channel, the support portion is located on a side of the elastic sealing portion away from the inlet end and is spaced apart from the elastic sealing portion by a first preset distance;

[0009] Among them, when the elastic sealing part is deformed to the first state, the elastic sealing part and the supporting part are in conflict with each other, and the inlet end and the outlet end are connected; when the elastic sealing part is reset to the second state, the elastic sealing part and the supporting part are spaced apart and sealed with the inner wall of the fluid channel, and the inlet end and the outlet end are cut off.

[0010] Optionally, the supporting portion includes a plurality of first protrusions, and the plurality of first protrusions are arranged at intervals around the circumference of the elastic sealing portion.

[0011] Optionally, the first protrusion includes a connecting arm extending axially along the fluid channel and a supporting arm extending radially along the fluid channel, one end of the connecting arm is connected to the inner wall of the fluid channel, and the other end of the connecting arm is connected to the supporting arm, and the supporting arm is located on the side of the elastic sealing portion away from the inlet end and is spaced apart from the elastic sealing portion at a first preset spacing.

[0012] Optionally, the support arm extends relative to the connecting arm along the radial direction of the fluid channel toward the outside of the elastic sealing portion, and the support arm is provided with a support surface facing the elastic sealing portion.

[0013] Optionally, the valve core further comprises a connecting portion, which is connected to the elastic sealing portion and is arranged away from the inlet end;

[0014] The valve assembly also includes an assembly portion, which is arranged in the fluid channel and connected to the inner wall of the fluid channel, and is connected to the connecting portion so that the elastic sealing portion is spaced apart from the supporting portion at a first preset distance.

[0015] Optionally, the assembly portion includes a plurality of second protrusions, which are spaced apart and distributed along the outer circumference of the connecting portion and cooperate to form an assembly groove for assembling the connecting portion, and the plurality of second protrusions are located on the inner side of the plurality of first protrusions.

[0016] Optionally, the second protrusion is provided with a first surface and a second surface spaced apart along the direction of fluid flow, the first surface is in contact with the outer wall of the connecting portion, the second surface and the elastic sealing portion are spaced apart at a second preset spacing, and the second surface is arranged close to the elastic sealing portion relative to the first surface, and the second preset spacing is less than or equal to the first preset spacing.

[0017] Optionally, when the elastic sealing portion is deformed to the first state, the elastic sealing portion is in abutment with the support portion and the second surface, and the inlet end is connected with the outlet end;

[0018] When the elastic sealing part is reset to the second state, the elastic sealing part is spaced apart from the supporting part and the second surface and is sealed with the inner wall of the fluid channel, and the inlet end and the outlet end are cut off.

[0019] Optionally, the elastic sealing portion includes a conical deformation body and a circumferential abutment flange arranged on the deformation body, wherein the abutment flange extends along the fluid flow direction and can abut and fit with the inner wall of the fluid channel to cut off the inlet end and the outlet end.

[0020] Optionally, the valve body includes a valve cover and a valve seat, the valve cover and the valve seat are detachably connected, the interior of the valve cover and the interior of the valve seat are connected to form a fluid channel, the inlet end is arranged on the valve cover, the outlet end is arranged on the valve seat, and the support part is connected to the valve seat.

[0021] Optionally, one of the valve cover and the valve seat is provided with an inserting groove, and the other of the valve cover and the valve seat is provided with an inserting portion, which is inserted into the inserting groove so that the valve cover and the valve seat can be detachably matched.

[0022] Optionally, the valve assembly also includes a connecting flange, which is located in the fluid channel and on the side of the elastic sealing portion away from the inlet end. The connecting flange is connected to the valve seat, and the connecting flange and the inner wall of the valve seat are spaced apart to form a plug-in groove, and the plug-in portion is provided on the valve cover.

[0023] Optionally, the connecting flange is disposed around and connected to the plurality of first protrusions, and the height of the first protrusions is greater than the height of the connecting flange.

[0024] Optionally, a projection of the elastic sealing portion on the end surface of the inlet end is located within a projection of the connecting flange on the end surface of the inlet end.

[0025] In a second aspect, an embodiment of the present disclosure further provides a water storage device, which includes a water tank body and a valve assembly as described above, wherein the valve assembly is connected to the water tank body to control the flow of fluid in the water tank body.

[0026] Optionally, the water storage device also includes a check valve, which includes a water inlet end and an elastic water outlet end. The water inlet end is connected to the elastic water outlet end, the elastic water outlet end is closed when there is no external force, and the elastic water outlet end is opened when an external force is applied. The water inlet end is connected to the water tank body to control the fluid flow of the water tank body.

[0027] Optionally, the water tank body includes a clean water tank and a sewage tank, the clean water tank is provided with a clean water inlet and a clean water outlet, the clean water inlet and the clean water outlet are respectively provided with a valve assembly, the sewage tank is provided with an air suction port, a sewage inlet and a sewage outlet, the air suction port is respectively provided with a valve assembly, and the sewage inlet and the sewage outlet are respectively provided with a check valve.

[0028] Optionally, the water storage device further comprises a sealing plug, which is passed through the water tank body and provided with a ventilation groove, which communicates with the inside and outside of the water tank body.

[0029] In a third aspect, an embodiment of the present disclosure further provides a cleaning robot, the cleaning robot comprising the water storage device as described above.

[0030] Compared with the prior art, in the valve assembly of the embodiment of the present invention, a support portion is provided on the side of the elastic sealing portion of the channel away from the inlet end, and the support portion and the elastic sealing portion are arranged at a first preset spacing. In this way, when fluid enters the inlet end in the fluid channel and forces the elastic sealing portion to deform to the first state so that the inlet end is connected with the outlet end, the elastic sealing portion and the support portion are in conflict with each other. The support portion can support the elastic sealing portion and limit the deformation of the elastic sealing portion, preventing the elastic sealing portion from continuing to deform in the direction of fluid flow, so that an opening of a certain size is formed between the elastic sealing portion and the inlet end, which can effectively limit the maximum opening between the elastic sealing portion and the inlet end, avoid excessive deformation of the elastic sealing portion and cause a large fluid flow rate, so that the elastic sealing portion can be stabilized in the first state when the maximum deformation occurs, thereby keeping the fluid flowing out of the outlet end at a certain flow rate.

[0031] The traditional method is to control the flow rate by controlling the output power of the pump body, which is limited by the poor stability of the output power and the low control accuracy of the output power, resulting in the fluid in the pipeline being too large and prone to overflow. The valve assembly of the disclosed embodiment can effectively and accurately control the maximum degree of connectivity between the inlet and outlet ends through the spacing and interference of the support part with the elastic sealing part, effectively avoiding the situation where the fluid in the pipeline is too large and preventing problems such as overflow. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] One or several embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0033] Figure 1 is a structural stereogram of a valve assembly provided by one embodiment of the present disclosure;

[0034] Figure 2 yes Figure 1 A plan cross-sectional view of the valve assembly shown;

[0035] Figure 3 yes Figure 1 An exploded view of the valve assembly shown;

[0036] Figure 4 is a plan cross-sectional view of a valve assembly provided in another embodiment of the present disclosure;

[0037] Figure 5 yes Figure 4 An exploded view of the valve assembly shown;

[0038] Figure 6 is a structural stereogram of a water storage device provided by another embodiment of the present disclosure;

[0039] Figure 7 yes Figure 6 Another perspective structural view of the water storage device shown;

[0040] Figure 8 yes Figure 6 A structural stereogram of a check valve of a water storage device shown;

[0041] Fig. 9 yes Figure 8 Another perspective structural diagram of the check valve shown;

[0042] Fig.10 yes Figure 6 A first perspective cutaway view of the water storage device shown;

[0043] Fig.11 yes Figure 6 a second perspective cutaway view of the water storage device shown;

[0044] Fig.12 yes Figure 6 a third perspective cutaway view of the water storage device shown;

[0045] Fig.13 yes Figure 6 a fourth perspective cutaway view of the water storage device shown;

[0046] Fig.14 yes Figure 6 a fifth perspective cutaway view of the water storage device shown;

[0047] Fig.15 yes Figure 6 A partial structural plan cross-sectional view of the water storage device shown. DETAILED DESCRIPTION

[0048] In order to facilitate the understanding of the present disclosure, the present disclosure is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "connected" to another element, it can be directly on another element, or there can be one or more centered elements therebetween. The terms "upper", "lower", "left", "right", "upper end", "lower end", "top" and "bottom" used in this specification indicate an orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present disclosure. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0049] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art of the present disclosure. The terms used in the specification of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0050] See also Figure 1 , Figure 1 It is a structural stereoscopic diagram of a valve assembly 10 provided in one embodiment of the present disclosure. The present disclosure provides a valve assembly 10, which can be applied to a water storage device 100 of a cleaning robot to achieve unidirectional conduction and cutoff of water flow or air flow in the pipeline of the water storage device 100.

[0051] Please also read Figures 2 to 3 , Figure 2 yes Figure 1 The valve assembly 10 is shown in a plan cross-sectional view, Figure 3 yes Figure 1 The structural exploded view of the valve assembly 10 shown in the figure, the valve assembly 10 includes a valve body 11, a valve core 12 and a support portion 13. The valve body 11 is provided with a fluid channel 1011, and the fluid channel 1011 has an inlet end 10111 and an outlet end 10112 that are connected to each other. The valve core 12 is arranged in the fluid channel 1011, and the valve core 12 includes an elastic sealing portion 121, and the elastic sealing portion 121 can be reciprocated along the fluid flow direction. The support portion 13 is arranged in the fluid channel 1011, and the support portion 13 is located on the side of the elastic sealing portion 121 away from the inlet end 10111 and is arranged with the elastic sealing portion 121 at a first preset spacing.

[0052] Among them, when the elastic sealing part 121 is deformed to the first state, the elastic sealing part 121 is in contact with the support part 13, and the inlet end 10111 is connected with the outlet end 10112; when the elastic sealing part 121 is reset to the second state, the elastic sealing part 121 is spaced apart from the support part 13 and is sealed with the inner wall of the fluid channel 1011, and the inlet end 10111 and the outlet end 10112 are cut off.

[0053] like Figure 2 As shown, in the absence of external force, the elastic sealing portion 121 is spaced apart from the support portion 13 and is sealed with the inner wall of the fluid channel 1011, and the inlet end 10111 and the elastic sealing portion 121 are in a closed state, so that the inlet end 10111 and the outlet end 10112 are cut off. After the fluid enters the fluid channel 1011, the fluid flows from the inlet end 10111 to the elastic sealing portion 121, and applies a force to the elastic sealing portion 121, so that the elastic sealing portion 121 is deformed in a direction away from the inlet end 10111, and at the same time, an opening is formed between the inlet end 10111 and the elastic sealing portion 121, and the inlet end 10111 and the outlet end 10112 are connected through the opening. In addition, when the elastic sealing portion 121 is deformed in a direction away from the inlet end 10111 to the point of being in conflict with the support portion 13, the opening is the largest, so that the degree of connection between the inlet end 10111 and the outlet end 10112 is the largest. The fluid may be water flow, air flow, or a mixture of water and air.

[0054] In the embodiment of the present disclosure, the channel is provided with a support portion 13 on the side of the elastic sealing portion 121 away from the inlet end 10111, and the support portion 13 and the elastic sealing portion 121 are arranged at a first preset interval. In this way, when fluid enters the inlet end 10111 in the fluid channel 1011 and forces the elastic sealing portion 121 to deform to the first state so that the inlet end 10111 is connected to the outlet end 10112, the elastic sealing portion 121 and the support portion 13 are in contact with each other, and the support portion 13 can support the elastic sealing portion 121 and The deformation of the sealing part 121 plays a limiting role, preventing the elastic sealing part 121 from continuing to deform in the direction of fluid flow, so that an opening of a certain size is formed between the elastic sealing part 121 and the inlet end 10111, which can effectively limit the maximum opening between the elastic sealing part 121 and the inlet end 10111, and avoid excessive deformation of the elastic sealing part 121 resulting in a large fluid flow rate, so that the elastic sealing part 121 can be stabilized in the first state when the maximum deformation occurs, so that the fluid flowing out of the outlet end 10112 is maintained at a certain flow rate.

[0055] The traditional method controls the flow rate by controlling the output power of the pump body, which is limited by the poor stability of the output power and the low control accuracy of the output power, resulting in the fluid in the pipeline being too large and prone to overflow. The valve assembly of the disclosed embodiment can effectively and accurately control the maximum degree of connectivity between the inlet end 10111 and the outlet end 10112 through the spacing and interference of the support part 13 with the elastic sealing part 121, effectively avoiding the situation where the fluid in the pipeline is too large and preventing problems such as overflow.

[0056] It is understandable that the first preset spacing can be set according to actual needs, as long as the flow rate of the fluid flowing from the inlet end 10111 to the outlet end 10112 is the required amount when the elastic sealing portion 121 is deformed to the first state.

[0057] Optionally, the first preset spacing is 1 mm to 2 mm, that is, when the elastic sealing portion 121 is reset to the second state, the spacing between the side of the elastic sealing portion 121 facing away from the inlet end 10111 and the side of the support portion 13 facing the elastic sealing portion 121 is 1 mm to 2 mm.

[0058] like Figure 2 and Figure 3As shown, in some embodiments, the support portion 13 includes a plurality of first protrusions 131, and the plurality of first protrusions 131 are arranged at intervals around the circumference of the elastic sealing portion 121. Through the above arrangement, on the one hand, when the elastic sealing portion 121 is deformed to the first state, the side of the elastic sealing portion 121 away from the inlet end 10111 can abut against the plurality of first protrusions 131 along its own circumference, and the plurality of first protrusions 131 can uniformly support the elastic sealing portion 121 along the circumference of the elastic sealing portion 121, so that the deformation amount of the elastic sealing portion 121 in the circumferential direction is kept consistent, so that in the circumferential direction of the elastic sealing portion 121, the distance between the elastic sealing portion 121 and the inlet end 10111 is kept consistent, which is helpful On the other hand, by dividing the support portion 13 into a plurality of first protrusions 131 structures arranged at intervals, a certain gap is provided between each two adjacent first protrusions 131, and while supporting the elastic sealing portion 121, the fluid can also be allowed to pass between two adjacent first protrusions 131, thereby flowing to the outlet end 10112, thereby avoiding flow obstruction caused by the support portion 13, and the spacing between each two adjacent first protrusions 131 can be set to be the same, and the plurality of first protrusions 131 can also play a certain flow-uniforming role on the fluid flowing to the outlet end 10112.

[0059] In some embodiments, the first protrusion 131 includes a connecting arm 1311 extending axially along the fluid channel 1011 and a support arm 1312 extending radially along the fluid channel 1011, one end of the connecting arm 1311 is connected to the inner wall of the fluid channel 1011, and the other end of the connecting arm 1311 is connected to the support arm 1312, and the support arm 1312 is located on the side of the elastic sealing portion 121 away from the inlet end 10111 and is spaced apart from the elastic sealing portion 121 by a first preset spacing. Through the above arrangement, the support arm 1312 can be lifted away from the inner wall of the fluid channel 1011 connected to one end of the connecting arm 1311 along the axial direction of the fluid channel 1011, so that a certain height is provided between the support arm 1312 and the inner wall of the fluid channel 1011 connected to one end of the connecting arm 1311. In this way, when the elastic sealing part 121 is in contact with the support arm 1312, a certain gap is provided between the elastic sealing part 121 and the inner wall of the fluid channel 1011 connected to one end of the connecting arm 1311 to allow the fluid to flow through the gap.

[0060] like Figure 4 and Figure 5 As shown, Figure 4 is a plan cross-sectional view of a valve assembly 10 provided in another embodiment of the present disclosure, Figure 5 yes Figure 4As shown in the structural exploded view of the valve assembly 10, in some embodiments, the support arm 1312 extends relative to the connecting arm 1311 along the radial direction of the fluid channel 1011 toward the outer side of the elastic sealing part 121, and the support arm 1312 is provided with a support surface 13121 facing the elastic sealing part 121, so that the support surface 13121 has a sufficient width in the radial direction of the fluid channel 1011, and when the elastic sealing part 121 is deformed to the first state, the elastic sealing part 121 can cooperate with the contact surface of the support surface 13121 in the radial direction, so that each part of the elastic sealing part 121 is deformed evenly, which helps to stabilize the flow, and the support surface 13121 can better support the elastic sealing part 121 and better limit the deformation of the elastic sealing part 121. In addition, the connecting arm 1311 extending in the axial direction can be set to be relatively thin, so that the fluid can flow from the gap between two adjacent connecting arms 1311.

[0061] In some embodiments, the support surface 13121 gradually extends away from the elastic connecting portion along the extension direction of the support arm 1312 to form an arc surface. In this way, when the elastic sealing portion 121 is in contact with the support surface 13121, the cross-section of the elastic sealing portion 121 can form an arc along the support surface 13121. At this time, along the radial direction of the elastic sealing portion 121, the opening size between the elastic sealing portion 121 and the inlet end 10111 gradually increases, and when the contour shape of the elastic sealing portion 121 is an umbrella shape, it can be adapted to it.

[0062] Please continue reading Figure 2 and Figure 3 In some embodiments, the valve core 12 also includes a connecting portion 122, which is connected to the elastic sealing portion 121 and is arranged away from the inlet end 10111. The valve assembly 10 also includes an assembly portion 14, which is arranged in the fluid channel 1011 and connected to the inner wall of the fluid channel 1011. The assembly portion 14 is connected to the connecting portion 122 so that the elastic sealing portion 121 is spaced apart from the support portion 13 at the above-mentioned first preset interval. In this way, the elastic sealing portion 121 can be maintained in the same position without the action of external force, so that the elastic sealing portion 121 can always be sealed with the inner wall of the fluid channel 1011 without the action of external force, so that the inlet end 10111 and the outlet end 10112 are cut off, and the connecting portion 122 is located at a position where the elastic sealing portion 121 is away from the inlet end 10111, so as to avoid the inlet end 10111 and the connecting portion 122 needing to be staggered on the same side of the elastic sealing portion 121 to affect the outflow of fluid from the inlet end 10111.

[0063] Optionally, the axes of the inlet end 10111, the elastic sealing portion 121, the connecting portion 122 and the outlet end 10112 coincide with each other, so that the size of the formed opening is uniform, which helps to stabilize the flow rate.

[0064] In some embodiments, the assembly portion 14 includes a plurality of second protrusions 141 , which are spaced apart along the outer circumference of the connecting portion 122 and cooperate to form an assembly groove 1401 for assembling the connecting portion 122 , and the plurality of second protrusions 141 are located on the inner side of the plurality of first protrusions 131 . Through the above arrangement, on the one hand, by providing the assembly groove 1401 on the assembly portion 14, the connection portion 122 can be limited. During installation, it is only necessary to plug the connection portion 122 of the valve core 12 into the assembly groove 1401. During disassembly, it is only necessary to pull the connection portion 122 of the valve core 12 out of the assembly groove 1401, thereby realizing the detachable installation of the valve core 12 in the fluid channel 1011, and facilitating the valve core 12 to be installed in the fluid channel 1011 or to be removed from the fluid channel 1011; on the other hand, by dividing the assembly portion 14 into a plurality of second protrusions 141 structures arranged at intervals, a certain gap is provided between each two adjacent second protrusions 141, while achieving the limitation of the connection portion 122, the fluid can also be allowed to pass between the two adjacent second protrusions 141, thereby flowing to the outlet end 10112, thereby avoiding the flow obstruction caused by the assembly portion 14, and the spacing between each two adjacent second protrusions 141 is the same, and the plurality of second protrusions 141 can also play a certain flow uniforming role on the fluid flowing to the outlet end 10112.

[0065] In some embodiments, the second protrusion 141 is provided with a first surface 1411 and a second surface 1412 spaced apart along the direction of the fluid channel 1011. The first surface 1411 is in contact with the outer wall of the connecting portion 122 to limit the connecting portion 122 in the axial direction, so that the valve core 12 can be fixed at the same position in the axial direction. When there is no external force, the first surface 1411 can make the elastic sealing portion 121 press against the inlet end 10111 and seal with the inner wall of the circulation channel by contacting the connecting portion 122. When the fluid generates pressure on the elastic sealing portion 121, the first surface 1411 can support the valve core 12 as a whole through the connecting portion 122. The second surface 1412 is spaced apart from the elastic sealing portion 121 at a second preset spacing, and the second surface 1412 is arranged close to the elastic sealing portion 121 relative to the first surface 1411. In this way, it can be avoided that the second protrusion 141 directly contacts the elastic sealing portion 121 when the elastic sealing portion 121 is reset to the second state, thereby preventing the deformation of the elastic sealing portion 121 from being affected by the direct contact between the second protrusion 141 and the elastic sealing portion 121. Furthermore, the second preset spacing is less than or equal to the first preset spacing, so that the second surface 1412 can be used to resist the elastic sealing portion 121 in the first state, so that the deformation of the elastic sealing portion 121 is more uniform, which helps to form a uniform opening to stabilize the flow. Among them, when the second preset spacing is less than the first preset spacing, it can match the elastic sealing portion 121 with an umbrella-shaped profile, so that the deformation amplitude of the elastic sealing portion 121 is adapted to its own profile, which helps to form a uniform opening. Among them, the first surface 1411 is located in the assembly groove 1401, and the second surface 1412 is located on the end surface of the second protrusion 141 close to the elastic sealing portion 121.

[0066] In some embodiments, when the elastic sealing part 121 is deformed to the first state, the elastic sealing part 121 is in contact with the support part 13 and the second surface 1412, and the inlet end 10111 is connected with the outlet end 10112. In this way, while the peripheral portion of the elastic sealing part 121 is in contact with the first protrusion 131, the inner peripheral portion of the elastic sealing part 121 can be in contact with the second surface 1412, thereby obtaining further support from the second protrusion 141, thereby preventing the inner peripheral portion of the elastic sealing part 121 from being recessed into the gap between the connecting part 122 and the first protrusion 131 when the elastic sealing part 121 is deformed to the first state, preventing the elastic sealing part 121 from being excessively deformed, making the deformation of the elastic sealing part 121 more uniform, and helping to form a uniform opening to stabilize the flow. When the elastic sealing part 121 is reset to the second state, the elastic sealing part 121 is spaced from the support part 13 and the second surface 1412 and is sealed with the inner wall of the circulation channel, and the inlet end 10111 is cut off from the outlet end 10112.

[0067] Optionally, the second preset spacing is greater than or equal to 0 mm and less than or equal to 1 mm.

[0068] In some embodiments, the elastic sealing portion 121 includes a conical deformable body 1211 and a circumferential abutment flange 1212 arranged on the deformable body 1211, the abutment flange 1212 extends along the fluid flow direction and can fit with the inner wall of the fluid channel 1011 to cut off the inlet end 10111 and the outlet end 10112. After the fluid enters the fluid channel 1011, the fluid flows from the inlet end 10111 to the deformable body 1211 and applies a force to the deformable body 1211, so that the deformable body 1211 is deformed in a direction away from the inlet end 10111. At the same time, the deformable body 1211 drives the abutment flange 1212 away from the inner wall of the fluid channel 1011, so that an opening is formed between the inlet end 10111 and the elastic sealing portion 121, and the inlet end 10111 and the outlet end 10112 are connected through the opening. By providing a conical deformable body 1211, the elastic sealing part 121 can have better elastic deformation ability. Under the action of external force, the elastic sealing part 121 is easy to be elastically deformed to the first state, and after the external force is removed, the elastic sealing part 121 is easy to return to the initial second state; by providing a resistance flange 1212 extending along the fluid flow direction on the circumference of the deformable body 1211, while achieving the resistance seal between the elastic sealing part 121 and the inner wall of the fluid channel 1011, the deformable body 1211 is elastically compressed to a certain extent in the direction away from the inlet end 10111, so that the deformable body 1211 can provide the resistance flange 1212 with an elastic force that presses against the inner wall of the fluid channel 1011, and the sealing effect is good.

[0069] In some embodiments, the valve body 11 includes a valve cover 111 and a valve seat 112, the valve cover 111 and the valve seat 112 are detachably connected, the interior of the valve cover 111 and the interior of the valve seat 112 are connected to form a fluid channel 1011, the inlet end 10111 is provided on the valve cover 111, the outlet end 10112 is provided on the valve seat 112, and the support portion 13 is connected to the valve seat 112. In addition, the detachable connection between the valve cover 111 and the valve seat 112 can realize a modular design of the entire valve assembly, which is convenient for installation and removal of the entire valve assembly on the water tank and for assembly.

[0070] Specifically, the assembly part 14 is arranged on the valve seat 112. The connection between the valve cover 111 and the valve seat 112 forms an accommodation space, which is located in the fluid channel 1011, and the inlet end 10111 and the outlet end 10111 are respectively located on both sides of the accommodation space. The valve core 12, the support part 13 and the assembly part 14 are all accommodated in the accommodation space, the elastic sealing part 121 of the valve core 12 is in abutment with the inner wall of the valve cover 111 at the inlet end 10111, and the abutment flange 1212 of the valve core 12 is arranged around the outer periphery of the inlet end 10111, the support part 13 and the assembly part 14 are located on the inner wall of the valve seat 112 at the outlet end 10112, and the assembly part 14 is arranged around the outer periphery of the outlet end 10112.

[0071] In some embodiments, one of the valve cover 111 and the valve seat 112 is provided with a plug-in slot 1121, and the other of the valve cover 111 and the valve seat 112 is provided with a plug-in portion 1111, and the plug-in portion 1111 is inserted into the plug-in slot 1121, so that the valve cover 111 and the valve seat 112 can be detachably matched. Through the plug-in match between the plug-in slot 1121 and the plug-in portion 1111, when installing, it is only necessary to insert the plug-in portion 1111 into the plug-in slot 1121, and when disassembling, it is only necessary to pull the plug-in portion 1111 out of the plug-in slot 1121, thereby realizing the detachable connection between the valve cover 111 and the valve seat 112, facilitating the installation and disassembly between the valve cover 111 and the valve seat 112, and having a simple structure. In some other embodiments, the valve cover 111 and the valve seat 112 can also be detachably connected by other means, such as a snap connection, a threaded connection, etc.

[0072] In some embodiments, the valve assembly 10 further includes a connecting flange 15, the connecting flange 15 is located in the fluid channel 1011 and on the side of the elastic sealing portion 121 away from the inlet end 10111, the connecting flange 15 is connected to the valve seat 112, the connecting flange 15 and the inner wall of the valve seat 112 are arranged to form a plug-in groove 1121, and the plug-in portion 1111 is arranged on the valve cover 111. Through the above arrangement, the connecting flange 15 can be matched with the inner side wall of the plug-in portion 1111 in a first radial direction, and the inner wall of the valve seat 112 can be matched with the outer side wall of the plug-in portion 1111 in a second radial direction, and the first radial direction and the second radial direction are opposite, so that the plug-in portion 1111 is formed with a two-way radial fit, so as to allow the plug-in portion 1111 to be sealed in a two-way radial direction, thereby improving the sealing between the valve cover 111 and the valve seat 112.

[0073] In some embodiments, the support portion 13, the assembly portion 14, the connecting flange 15 and the valve seat 112 are an integrated structure.

[0074] In some embodiments, the connecting flange 15 is surrounded by and connected to multiple first protrusions 131, and the height of the first protrusions 131 is greater than the height of the connecting flange 15. In this way, the structure on the valve seat 112 can be made more compact, and when the elastic sealing portion 121 is deformed to the first state and abuts against the first protrusions 131, a certain gap can exist between the elastic sealing portion 121 and the connecting flange 15 to allow the fluid to flow through the gap to the outlet end 10112.

[0075] Among them, the connecting arm 1311 of the first protrusion 131 is located on the inner wall of the connecting flange 15, and protrudes from the inner wall of the connecting flange 15 along the radial direction of the fluid channel 1011, and the supporting arm 1312 of the first protrusion 131 is located at one end of the connecting flange 15 close to the elastic sealing part 121, and protrudes from one end of the connecting flange 15 along the height direction of the connecting flange 15.

[0076] In some embodiments, the projection of the elastic sealing portion 121 on the end surface of the inlet end 10111 is located within the projection of the connecting flange 15 on the end surface of the inlet end 10111. In this way, when the elastic sealing portion 121 is deformed to the first state and abuts against the first protrusion 131, the elastic sealing portion 121 can be located within the connecting flange 15, thereby preventing the area of ​​the elastic sealing portion 121 from being too large and covering the outside of the connecting flange 15 and affecting the fluid from entering the connecting flange 15.

[0077] See also Figure 6 and Figure 7 , Figure 6 is a structural stereogram of a water storage device 100 provided in another embodiment of the present disclosure. Figure 7 yes Figure 6 Another perspective structural diagram of the water storage device 100 is shown. The embodiment of the present disclosure further provides a water storage device 100, which includes a water tank body 20 and the valve assembly 10 as described above. The valve assembly 10 is connected to the water tank body 20 to control the fluid on and off of the water tank body 20. By arranging the valve assembly 10 on the water tank body 20, it is possible to avoid excessive fluid flow in and out of the water tank body 20, so that the fluid in and out of the water tank body 20 can be maintained at a certain flow rate.

[0078] Please also read Figure 8 and Fig. 9 , Figure 8 yes Figure 6 The structural stereogram of the check valve 30 of the water storage device 100 is shown in FIG. Fig. 9 yes Figure 8 Another perspective structural diagram of the check valve 30 is shown. In some embodiments, the water storage device 100 further includes a check valve 30, which includes a water inlet end 31 and an elastic water outlet end 32. The water inlet end 31 is connected to the elastic water outlet end 32. The elastic water outlet end 32 is closed without external force, and the elastic water outlet end 32 is opened under external force. The water inlet end 31 is connected to the water tank body 20 to control the fluid on and off of the water tank body 20. Through the above arrangement, it can be prevented that the liquid in the water tank body 20 leaks out from the check valve 30 when the water tank body 20 is tipped or turned over.

[0079] Specifically, the water inlet end 31 is cylindrical, the elastic water outlet end 32 is duckbill-shaped, the water inlet end 31 and the elastic water outlet end 32 are connected to form an internal flow channel 3201, and an opening and closing portion 321 is provided at one end of the elastic water outlet end 32 away from the water inlet end 31. When the external pump body draws air from the elastic water outlet end 32, so that the air pressure on the side of the opening and closing part 321 away from the water inlet end 31 is lower than the air pressure in the internal flow channel 3201, a certain pressure difference is generated between the side of the opening and closing part 321 away from the water inlet end 31 and the internal flow channel 3201, so that the opening and closing part 321 can be opened to form an opening, so that the internal flow channel 3201 and the opening are connected to allow the fluid to flow out through the water inlet end 31 through the internal flow channel 3201 and the opening at the opening and closing part 321 in sequence; when the external pump body stops drawing air, the air pressure on the side of the opening and closing part 321 away from the water inlet end 31 and the internal flow channel 3201 is balanced, the opening and closing part 321 is closed, and the internal flow channel 3201 is cut off.

[0080] In some embodiments, the check valve 30 may be a duckbill valve structure.

[0081] See also Figures 10 to 14 , Fig.10 yes Figure 6 The first stereoscopic cross-sectional view of the water storage device 100 is shown, Fig.11 yes Figure 6 The second stereoscopic cross-sectional view of the water storage device 100 is shown, Fig.12 yes Figure 6 The third stereoscopic cross-sectional view of the water storage device 100 is shown. Fig.13 yes Figure 6 The fourth stereoscopic cross-sectional view of the water storage device 100 is shown, Fig.14 yes Figure 6 The fifth stereoscopic sectional view of the water storage device 100 is shown. In some embodiments, the water tank body 20 includes a clean water tank 21 and a clean water tank 22. The clean water tank 21 is provided with a clean water inlet 2101 and a clean water outlet 2102. The clean water inlet 2101 and the clean water outlet 2102 are respectively provided with a valve assembly 10. The sewage tank 22 includes an air suction port 2201, a sewage inlet 2202 and a sewage outlet 2203. The air suction port 2201 is correspondingly provided with a valve assembly 10. The sewage inlet 2202 and the sewage outlet 2203 are correspondingly provided with a check valve 30.

[0082] Specifically, for the convenience of explanation, the valve assemblies 10 corresponding to the clean water inlet 2101, the clean water outlet 2102 and the air suction port 2201 are respectively referred to as the first valve assembly, the second valve assembly and the third valve assembly, and the check valves 30 corresponding to the sewage inlet 2202 and the sewage outlet 2203 are respectively referred to as the first check valve and the second check valve.

[0083] like Fig.10As shown, the inlet end 10111 of the first valve assembly is connected to the clean water inlet 2101, and the outlet end 10112 of the first valve assembly is connected to the interior of the clean water tank 21. When clean water enters the inlet end 10111 through the clean water inlet 2101, the clean water flows to the elastic sealing part 121 and exerts a certain stamping pressure on the elastic sealing part 121, so that the elastic sealing part 121 is deformed to the first state toward the side where the support part 13 is located, so that the interior of the clean water tank 21 is connected to the outside to allow clean water to enter the interior of the clean water tank 21.

[0084] like Fig.11 As shown, the outlet end 10112 of the second valve assembly is connected to the clean water outlet 2102, and the inlet end 10111 of the second valve assembly is connected to the interior of the clean water tank 21. A first pump body connected to the clean water outlet 2102 can be provided to start the first pump body to extract the gas on the side of the elastic sealing part 121 away from the inlet end 10111, so that the air pressure on the side of the elastic sealing part 121 away from the inlet end 10111 is lower than the air pressure on the side of the elastic sealing part 121 close to the inlet end 10111, and a certain pressure difference is generated on both sides of the elastic sealing part 121, so that the elastic sealing part 121 can be deformed toward the support part 13 to the first state, thereby connecting the interior of the clean water tank 21 with the outside. At the same time, since the gas inside the clean water tank 21 is extracted through the first pump body, the internal air pressure of the clean water tank 21 is lower than the external air pressure, and a certain pressure difference is generated between the inside and the outside of the clean water tank 21, thereby driving the clean water to flow out from the inside of the clean water tank 21 to the outside.

[0085] like Fig.12 As shown, the inlet end 10111 of the third valve assembly is connected to the air suction port 2201 and is connected to the interior of the sewage tank 22. A second pump body connected to the outlet end 10112 of the third valve assembly can be provided to start the second pump body to extract the gas on the side of the elastic sealing portion 121 away from the inlet end 10111, so that the air pressure on the side of the elastic sealing portion 121 away from the inlet end 10111 is lower than the air pressure on the side of the elastic sealing portion 121 close to the inlet end 10111, and a certain pressure difference is generated on both sides of the elastic sealing portion 121, so that the elastic sealing portion 121 can be deformed toward the support portion 13 to the first state, so that the interior of the sewage tank 22 is connected to the outside. At the same time, since the gas inside the sewage tank is extracted through the second pump body, the internal air pressure of the sewage tank 22 is lower than the external air pressure, and a certain pressure difference is generated between the inside and the outside of the sewage tank 22, so that the external sewage can be driven from the sewage inlet 2202 through the corresponding check valve 30 into the interior of the sewage tank 22.

[0086] like Fig.13As shown, the water inlet end 31 of the first check valve is connected to the sewage inlet 2202, and the elastic water outlet end 32 of the first check valve is connected to the interior of the sewage tank 22. When the second pump body extracts the gas inside the sewage tank 22 through the third valve assembly and makes the internal air pressure of the sewage tank 22 lower than the external air pressure, the elastic water outlet end 32 opens under the action of the internal and external pressure difference, so that the water inlet end 31 is connected to the interior of the sewage tank 22, thereby driving the external sewage to flow into the interior of the sewage tank 22 through the sewage inlet 2202, the water inlet end 31 and the elastic water outlet end 32 in sequence.

[0087] like Fig.14 As shown, the elastic water outlet end 32 of the second check valve is connected to the sewage outlet 2203, and the water inlet end 31 of the second check valve is connected to the interior of the sewage tank 22. The sewage outlet 2203 is used to connect and communicate with the sewage recovery port of the base station. The gas on the side of the elastic water outlet end 32 away from the water inlet end 31 can be pumped out through a sewage pump on the base station that is connected to the sewage recovery port, so that the air pressure on the side of the elastic water outlet end 32 away from the water inlet end 31 is lower than the air pressure on the side of the elastic water outlet end 32 close to the water inlet end 31. The elastic water outlet end 32 opens under the action of the internal and external pressure difference, so that the water inlet end 31 is connected to the outside of the sewage tank 22, thereby driving the sewage inside the sewage tank 22 to flow into the interior of the base station through the water inlet end 31, the elastic water outlet end 31, the sewage outlet 2203 and the sewage recovery port in sequence.

[0088] See also Fig.15 , Fig.15 yes Figure 6 The partial structural planar cross-sectional view of the water storage device 100 shown in the figure, in some embodiments, the water storage device 100 further comprises a sealing plug 40, the sealing plug 40 is arranged through the water tank body 20, and the sealing plug 40 is provided with a venting groove 401, and the venting groove 401 communicates the inside and the outside of the water tank body 20. Through the above arrangement, the inside of the water tank body 20 can be filled with air and exhausted through the venting groove 401 to ensure the normal water inlet and drain function of the water tank body 20, and even if the inside of the water tank body 20 stores liquid, during the tilting or flipping process of the water tank body 20, the liquid inside the water tank body 20 will displace the air inside the water tank body 20, so that the air inside the water tank body 20 is exhausted through the venting groove 401, so that the internal air pressure of the water tank body 20 is lower than the external air pressure, thereby ensuring that the liquid inside the water tank body 20 will not leak out with the tilting or flipping of the water tank body 20.

[0089] Specifically, the sealing plug 40 is provided on the top of the clean water tank 21, and the ventilation groove 401 is connected to the inside and outside of the clean water tank 21. When the clean water tank 21 is replenished with water through the clean water inlet 2101 and the first valve assembly in sequence, after the clean water enters the clean water tank 21, the air inside the clean water tank 21 will be displaced, so that the air inside the clean water tank 21 is discharged outward through the ventilation groove 401 to ensure the normal water filling function of the clean water tank 21. When the first pump body is started to make the clean water tank 21 drain outward through the second valve assembly and the clean water outlet 2102 in sequence, since the gas inside the clean water tank 21 is pumped out through the first pump body, the internal air pressure of the clean water tank 21 is lower than the external air pressure, and a certain pressure difference is generated between the inside and the outside of the clean water tank 21, so that the clean water tank 21 can be replenished with air inward through the ventilation groove 401 to ensure the normal drainage function of the clean water tank 21.

[0090] More specifically, the sealing plug 40 includes a fixed plunger 41, a connecting end cover 42 and a sealing cover 43. A fixing port 2103 and a water injection port 2104 are provided on the top of the clean water tank 21. The fixed plunger 41 is inserted into the fixed port 2103, and the sealing cover 43 is covered on the water injection port 2104. The connecting end cover 42 connects the fixed plunger 41 and the sealing cover 43. Thus, after the sealing cover 43 is pulled out from the water injection port 2104, the sealing cover 43 can still be fixed to the clean water tank 21 with the fixed plunger 41. In use, the sealing cover 43 can be pulled out from the water injection port 2104 to inject clean water into the clean water tank 21.

[0091] Among them, the ventilation groove 401 is arranged on the fixed plunger 41, and a ventilation gap is arranged between the connecting end cover 42 and the clean water tank 21. The ventilation gap connects the ventilation groove 401 and the outside of the clean water tank 21 to avoid blocking the ventilation groove 401 when the connecting end cover 42 and the clean water tank 21 are fitted.

[0092] The embodiment of the present disclosure further provides a cleaning robot, which includes the water storage device 100 as described above.

[0093] It should be particularly noted that the cleaning robot provided in the embodiment of the present disclosure only shows the part related to the technical problem to be solved by the embodiment of the present disclosure. It can be understood that the cleaning robot provided in the embodiment of the present disclosure also includes other structures for realizing the functions of the cleaning robot, including but not limited to a driving component for driving the overall movement of the cleaning robot, a cleaning component for cleaning the floor, etc.

[0094] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them. Under the idea of ​​the present disclosure, the technical features in the above embodiments or different embodiments may also be combined, the steps may be implemented in any order, and there are many other changes in different aspects of the present disclosure as described above, which are not provided in detail for the sake of simplicity. Although the present disclosure is described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present disclosure.

Claims

1. A valve assembly, characterized in that: include: A valve body, wherein the valve body is provided with a fluid passage, wherein the fluid passage has an inlet end and an outlet end that are interconnected; A valve core, the valve core is arranged in the fluid channel, the valve core comprises an elastic sealing portion, and the elastic sealing portion can be reciprocatedly deformed along the fluid flow direction; and A support portion, the support portion is disposed in the fluid channel, the support portion is located at a side of the elastic sealing portion away from the inlet end and is spaced apart from the elastic sealing portion by a first preset distance; Among them, when the elastic sealing part is deformed to the first state, the elastic sealing part and the support part are in contact with each other, and the inlet end is connected with the outlet end; when the elastic sealing part is reset to the second state, the elastic sealing part and the support part are spaced apart and sealed with the inner wall of the fluid channel, and the inlet end and the outlet end are cut off.

2. The valve assembly according to claim 1, characterized in that The supporting portion includes a plurality of first protrusions, and the plurality of first protrusions are arranged at intervals around the circumference of the elastic sealing portion.

3. The valve assembly according to claim 2, characterized in that The first protrusion includes a connecting arm extending along the axial direction of the fluid channel and a supporting arm extending along the radial direction of the fluid channel, one end of the connecting arm is connected to the inner wall of the fluid channel, and the other end of the connecting arm is connected to the supporting arm, and the supporting arm is located on the side of the elastic sealing portion away from the inlet end and is spaced apart from the elastic sealing portion at a first preset distance.

4. The valve assembly according to claim 3, characterized in that The support arm extends relative to the connecting arm along the radial direction of the fluid channel toward the outer side of the elastic sealing portion, and the support arm is provided with a support surface facing the elastic sealing portion.

5. The valve assembly according to claim 2, characterized in that The valve core further comprises a connecting portion, which is connected to the elastic sealing portion and is arranged away from the inlet end; The valve assembly further includes an assembly portion, which is disposed in the fluid channel and connected to an inner wall of the fluid channel, and is connected to the connecting portion so that the elastic sealing portion is spaced apart from the supporting portion at the first preset interval.

6. The valve assembly according to claim 5, characterized in that The assembly portion includes a plurality of second protrusions, which are spaced apart and distributed along the outer circumference of the connecting portion and cooperate to form an assembly groove for assembling the connecting portion, and the plurality of second protrusions are located inside the plurality of first protrusions.

7. The valve assembly according to claim 6, characterized in that The second protrusion is provided with a first surface and a second surface spaced apart along the fluid flow direction, the first surface is in contact with the outer wall of the connecting portion, the second surface and the elastic sealing portion are spaced apart at a second preset spacing, and the second surface is arranged close to the elastic sealing portion relative to the first surface, and the second preset spacing is less than or equal to the first preset spacing.

8. The valve assembly according to claim 7, characterized in that When the elastic sealing portion is deformed to the first state, the elastic sealing portion is in contact with the support portion and the second surface, and the inlet end is connected with the outlet end; When the elastic sealing portion is reset to the second state, the elastic sealing portion is spaced apart from the supporting portion and the second surface and is sealed with the inner wall of the fluid channel, and the inlet end is cut off from the outlet end.

9. The valve assembly according to any one of claims 1 to 8, characterized in that: The elastic sealing part includes a conical deformation body and a contact flange arranged on the circumference of the deformation body. The contact flange extends along the fluid flow direction and can contact and fit with the inner wall of the fluid channel to cut off the inlet end and the outlet end.

10. The valve assembly according to any one of claims 2 to 8, characterized in that The valve body includes a valve cover and a valve seat, the valve cover is detachably connected to the valve seat, the interior of the valve cover and the interior of the valve seat are connected to form a fluid channel, the inlet end is arranged on the valve cover, the outlet end is arranged on the valve seat, and the support portion is connected to the valve seat.

11. The valve assembly according to claim 10, characterized in that One of the valve cover and the valve seat is provided with an inserting groove, and the other of the valve cover and the valve seat is provided with an inserting portion, and the inserting portion is inserted into the inserting groove, so that the valve cover and the valve seat can be detachably matched.

12. The valve assembly according to claim 11, characterized in that The valve assembly also includes a connecting flange, which is located in the fluid channel and on the side of the elastic sealing portion away from the inlet end. The connecting flange is connected to the valve seat, and the connecting flange and the inner wall of the valve seat are spaced apart to form the plug-in groove. The plug-in portion is provided on the valve cover.

13. The valve assembly according to claim 12, characterized in that The connecting flange is disposed around and connected to the first protrusions, and the height of the first protrusions is greater than the height of the connecting flange.

14. The valve assembly according to claim 13, characterized in that The projection of the elastic sealing portion on the end surface of the inlet end is located within the projection of the connecting flange on the end surface of the inlet end.

15. A water storage device, characterized in that: It comprises a water tank body and a valve assembly as claimed in any one of claims 1 to 14, wherein the valve assembly is connected to the water tank body to control the fluid flow of the water tank body.

16. The water storage device according to claim 15, characterized in that: The water storage device also includes a check valve, which includes a water inlet end and an elastic water outlet end. The water inlet end is connected to the elastic water outlet end. The elastic water outlet end is closed when there is no external force, and the elastic water outlet end is opened when an external force is applied. The water inlet end is connected to the water tank body to control the fluid flow of the water tank body.

17. The water storage device according to claim 16, characterized in that: The water tank body includes a clean water tank and a sewage tank, the clean water tank is provided with a clean water inlet and a clean water outlet, the clean water inlet and the clean water outlet are correspondingly provided with a valve assembly, the sewage tank is provided with an air suction port, a sewage inlet and a sewage outlet, the air suction port is correspondingly provided with a valve assembly, and the sewage inlet and the sewage outlet are correspondingly provided with a check valve.

18. The water storage device according to claim 15, characterized in that: The water storage device also includes a sealing plug, which is penetrated by the water tank body and is provided with a ventilation groove, and the ventilation groove communicates with the inside and outside of the water tank body.

19. A cleaning robot, characterized in that: A water storage device comprising any one of claims 15 to 18.

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