Waterway system, cleaning base station and cleaning system

Abstract

The embodiment of the utility model provides a waterway system. The waterway system comprises a shell, a piston, a first sealing piece, a second sealing piece, a water inlet pipe and a water outlet pipe. The piston is movably arranged in the shell, the first sealing piece and the second sealing piece are both arranged between the piston and the shell and are sequentially arranged in the moving direction of the piston, and the water inlet pipe and the water outlet pipe are both communicated with the shell.

Description

Technical Field

[0001] This application belongs to the field of household appliance technology, and in particular relates to a water system, a cleaning base station, and a cleaning system. Background Technology

[0002] In water systems, a housing and a piston are used for pumping and draining water. The piston divides the housing into a water-filled chamber and a waterless chamber. The movement of the piston within the housing can pump water into the water-filled chamber or drain water from the water-filled chamber. However, in related technologies, the sealing effect between the piston and the housing is generally poor, causing water from the water-filled chamber to enter the waterless chamber, thus affecting the movement of the piston and the pumping and draining efficiency. Utility Model Content

[0003] This application aims to at least partially solve the technical problem that the poor sealing effect between the piston and the housing causes water in the water-filled chamber to enter the waterless chamber, thus affecting the piston's movement and the pumping and draining effects. To this end, this application provides a water system, a cleaning base station, and a cleaning system.

[0004] In a first aspect, embodiments of this application provide a waterway system, including:

[0005] A housing and a piston, wherein the piston is movably disposed within the housing;

[0006] The first seal and the second seal are both disposed between the piston and the housing, and are arranged sequentially along the direction of piston movement;

[0007] Both the inlet pipe and the outlet pipe are connected to the housing.

[0008] In the water system proposed in this application embodiment, since a first seal and a second seal are provided between the piston and the housing, and the first seal and the second seal are arranged sequentially along the movement direction of the piston, a two-stage seal is formed between the piston and the housing. During the piston's movement to pump and drain water, the double seal of the first seal and the second seal greatly reduces the amount of water entering the waterless chamber, ensuring the smooth movement of the piston and the pumping and draining effect.

[0009] Secondly, this application provides a clean base station, including a water tank and the water system described above, wherein the inlet pipe is connected to the water tank and the outlet pipe is connected to the sewer.

[0010] The beneficial effects of the clean base station provided in the second aspect are the same as those of the waterway system provided in the first aspect, and will not be repeated here.

[0011] Thirdly, embodiments of this application provide a cleaning system, including the cleaning base station described above or the water system described above.

[0012] The beneficial effects of the cleaning system provided in the third aspect are the same as those of the water system provided in the first aspect, and will not be repeated here. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 A schematic diagram of the structure of the clean base station in an embodiment of this application is shown.

[0015] Figure 2 It shows Figure 1 A schematic diagram of the internal structure of a clean base station.

[0016] Figure 3 It shows Figure 1 A schematic diagram of the waterway system.

[0017] Figure 4 It shows Figure 3 A schematic diagram of the fit between the piston and the housing.

[0018] Figure 5 It shows Figure 4 A schematic diagram of the piston and sealing structure.

[0019] Figure 6 It shows Figure 4 A schematic diagram of the structure of the first sealing element.

[0020] Figure 7 It shows Figure 6 A structural schematic diagram of the first seal from another perspective.

[0021] Figure 8 It shows Figure 7 A cross-sectional view of the first seal.

[0022] Figure 9 It shows Figure 4 A schematic diagram of the structure of the second seal.

[0023] Figure 10 It shows Figure 9 A structural schematic diagram of the second seal from another perspective.

[0024] Figure 11 It shows Figure 10 A cross-sectional view of the second seal.

[0025] Figure 12 It shows Figure 4 A schematic diagram of the piston structure.

[0026] Figure 13 It shows Figure 3 A cross-sectional view of the drive mechanism.

[0027] Figure 14 It shows Figure 3 A schematic diagram of the structure of the inlet valve and inlet pipe.

[0028] Figure 15 It shows Figure 14 A schematic diagram of the structure of the first valve core.

[0029] Figure 16 It shows Figure 3 A schematic diagram of the structure of the outlet valve and outlet pipe.

[0030] Figure 17 It shows Figure 16 A schematic diagram of the structure of the second valve core.

[0031] Figure 18 It shows Figure 3 A cross-sectional view of the central drive mechanism from another perspective.

[0032] Figure 19 It shows Figure 3 A schematic diagram of the assembly of the drive assembly and the piston.

[0033] Figure label:

[0034] 1-Clean base station, 10-Water system, 100-Inlet pipe, 200-Outlet pipe, 300-Inlet valve, 310-First valve body, 311-First inlet, 312-First outlet, 320-First valve core, 321-First opening, 322-Second opening, 323-First channel, 324-First sidewall, 400-Outlet valve, 410-Second valve body, 411-Second inlet, 412-Second outlet, 420-Second valve core, 421-Third opening, 422-Fourth opening, 423-Second channel, 424-Second sidewall, 500-Drive mechanism, 510-Drive assembly, 511-Driver, 512-Transmission assembly, 512a-Transmission component, 512b-Rotating component, 512c-Connecting rod 520-Housing, 521-With water cavity, 522-Without water cavity, 523-First end, 524-Second end, 530-Piston, 531-Snap-fit ​​groove, 532-Mounting groove, 533-Top plate, 534-Partition plate, 535-Bottom plate, 536-First piston section, 537-Second piston section, 600-First seal, 610-First sealing body, 611-First sealing part, 612-Second sealing part, 612a-Guide surface, 613-Snap-fit ​​part, 620-Protrusion, 700-Second seal, 710-Third sealing part, 711-First sealing surface, 720-Fourth sealing part, 721-First guide surface, 722-Second guide surface, 730-Fifth sealing part, 731-Second sealing surface, 20-Water tank. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] It should be noted that all directional indications in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0039] In water systems, a housing and piston are used for pumping and draining water. The piston divides the housing into a water-bearing chamber and a waterless chamber. A drive mechanism is often installed in the waterless chamber to move the piston. The piston's movement within the housing allows water to be pumped into the water-bearing chamber or discharged from the water-bearing chamber. However, in related technologies, the sealing effect between the piston and the housing is generally poor, allowing water from the water-bearing chamber to enter the waterless chamber, thus affecting the piston's movement and the pumping and draining efficiency.

[0040] To address the problems existing in related technologies, this application provides a water system, a cleaning base station, and a cleaning system. A two-stage seal is provided between the piston and the housing. During the piston's movement to pump and drain water, the double seal of the first and second seals greatly reduces the amount of water entering the waterless chamber, ensuring the normal operation of the drive mechanism and thus guaranteeing the smooth movement of the piston and the pumping and draining effect.

[0041] This application is described below with reference to the accompanying drawings and specific embodiments:

[0042] Figure 1 A schematic diagram of the structure of the clean base station in an embodiment of this application is shown. Please refer to [link / reference]. Figure 1 This application provides a water system 10. The water system provided in this application can reduce the amount of water entering the waterless chamber 522, thereby ensuring the smooth movement of the piston 530 and the pumping and drainage effect.

[0043] Figure 2 It shows Figure 1 A schematic diagram of the internal structure of a clean base station. Figure 3 It shows Figure 1 Schematic diagram of the waterway system Figure 4 It shows Figure 3 Please refer to the schematic diagram of the fit between the piston and the housing. Figures 2-4 This application provides a water system 10, including a housing 520, a piston 530, a first seal 600, a second seal 700, an inlet pipe 100, and an outlet pipe 200. The piston 530 is movably disposed within the housing 520. The first seal 600 and the second seal 700 are both disposed between the piston 530 and the housing 520 and are arranged sequentially along the direction of movement of the piston 530. The inlet pipe 100 and the outlet pipe 200 are both connected to the housing 520.

[0044] The piston 530 moves along the length of the housing 520 within the housing 520. The piston 530 can pump and drain water by moving within the housing 520. The piston 530 divides the housing 520 into a water-filled chamber 521 and a waterless chamber 522. When pumping water, water enters the water-filled chamber 521 through the inlet pipe 100. When draining water, water is discharged from the water-filled chamber 521 through the outlet pipe 200.

[0045] Both the first seal 600 and the second seal 700 move with the piston 530 to form a dynamic seal. The first seal 600 and the second seal 700 can be made of flexible materials such as rubber or silicone, possessing elasticity and thus adaptable to deformation for better sealing. The first seal 600 and the second seal 700 can be annular structures, fitted onto the piston 530. Because the first seal 600 and the second seal 700 form a two-stage seal between the piston 530 and the housing 520, the double seal significantly reduces the amount of water entering the waterless chamber 522, thereby ensuring the smooth movement of the piston 530 and the effective pumping and drainage.

[0046] In some embodiments, the first seal 600 is disposed near the water-filled cavity 521, and the second seal 700 is disposed near the waterless cavity 522.

[0047] That is, the first sealing element 600 achieves the primary sealing function, and the second sealing element 700 achieves the final sealing function. During the process of piston 530 moving to pump and drain water, the first sealing element 600 forms a first seal against the water and impurities in the water chamber 521. The first sealing element 600 can block most of the water and impurities in the water chamber 521 from entering. A small amount of water and impurities will enter the first sealing element 600, and the second sealing element 700 forms a second seal against this part of water and impurities, thereby minimizing the amount of water entering the waterless chamber 522 and ensuring the smooth movement of piston 530 and the pumping and draining effect.

[0048] Of course, in other embodiments, the second seal 700 may be positioned closer to the water-filled cavity 521 and the first seal 600 may be positioned closer to the waterless cavity 522; there are no restrictions on this.

[0049] In some implementations... Figure 5 It shows Figure 4 A schematic diagram of the piston and sealing structure. Figure 6 It shows Figure 4 Please refer to the structural diagram of the first seal. Figures 4-6 The first sealing element 600 includes a first sealing body 610 and a protrusion 620 protruding from the first sealing body 610. The first sealing body 610 is sleeved on the piston 530, and the protrusion 620 can contact the housing 520.

[0050] After the water system 10 has been pumping and draining for a long time, impurities in the water will accumulate on the side wall of the housing 520, affecting the movement of the piston 530. Since the protrusion 620 can contact the housing 520, during the movement of the piston 530, the protrusion 620 and the housing 520 will rub against each other, so that the protrusion 620 can scrape off a lot of dirt on the side wall of the housing 520, keeping the side wall of the housing 520 clean, reducing the impurities entering the second seal 700, effectively improving the damage caused by particulate matter in the impurities to the second seal 700, and ensuring the sealing effect of the second seal 700.

[0051] In some embodiments, the protrusions 620 are multiple, and the multiple protrusions 620 are spaced apart along the movement direction of the piston 530.

[0052] Since the protrusion 620 protrudes from the first sealing body 610 and can contact the housing 520, a gap will be formed between the first sealing body 610 and the housing 520. Because the protrusion 620 is elastic, when the liquid inlet pressure is high, the protrusion 620 will separate from the housing 520 under the impact of the water flow, allowing water to enter between the first seal 600 and the second seal through the gap. This creates a pressure difference between the two ends of the first seal 600. The greater the pressure difference, the greater the deformation of the first seal 600, resulting in more water entering the second seal 700, which in turn leads to more water entering the waterless cavity 522, affecting the sealing effect.

[0053] Because the multiple protrusions 620 are spaced apart, i.e., there is a gap between two adjacent protrusions 620, multiple chambers 630 are formed between the multiple protrusions 620 and the housing 520. When the piston 530 moves, along the direction from the water-filled chamber 521 to the waterless chamber 522, the first protrusion 620, because it is in direct contact with the water in the water-filled chamber 521, experiences the greatest fluid impact, resulting in the greatest pressure difference and deformation on both sides of the first protrusion 620. That is, the gap between the first protrusion 620 and the housing 520 is the largest, thus the largest amount of water enters the first chamber 630 through this gap. However, since the amount of water entering this chamber 630 is much less than the amount of water in the water-filled chamber 521, the second protrusion 620 experiences less fluid impact, and the pressure difference on both sides is smaller. The pressure difference between the two sides of the third protrusion 620 is much smaller than that of the first protrusion 620, and the deformation is also smaller than that of the first protrusion 620. As a result, less water enters the second chamber 630. Consequently, the deformation of the third protrusion 620 is smaller than that of the second protrusion 620, and so on. It can be clearly seen that the pressure difference between the two sides of the last protrusion 620, that is, the protrusion 620 closest to the second seal 700, is the smallest, the deformation is the smallest, and the sealing effect is the best. This allows less water to enter the second seal 700, reduces the fluid impact on the second seal 700, and ensures the sealing effect of the second seal 700.

[0054] Furthermore, by having multiple spaced protrusions 620 contacting the housing 520, the contact area between the piston 530 and the housing 520 can be reduced, thereby reducing the frictional resistance between the piston 530 and the housing 520 during movement, making the piston 530 move more smoothly.

[0055] In some implementations... Figure 7 It shows Figure 6 Another structural diagram of the first seal in the middle. Figure 8 It shows Figure 7 For a cross-sectional view of the first seal, please refer to [link / reference]. Figure 7 and Figure 8 The first sealing body 610 includes a first sealing part 611 and a second sealing part 612. The first sealing part 611 is arranged around the periphery of the piston 530, and the second sealing part 612 is covered on the end of the piston 530. The protrusion 620 is provided on the first sealing part 611.

[0056] Since the first sealing part 611 is arranged around the periphery of the piston 530 and the second sealing part 612 is covered on the end of the piston 530, that is, the first sealing body 610 covers both the periphery and the end of the piston 530, reducing the part of the piston 530 exposed to water. This can improve the situation where impurities in the water accumulate on the piston 530, increasing the resistance of the piston 530's movement, and to a certain extent avoid the particulate matter in the impurities from damaging the piston 530 and affecting the service life of the piston 530.

[0057] In some embodiments, the first sealing part 611 and the second sealing part 612 may be integrally formed to enhance the structural strength of the first sealing body 610. Of course, in other embodiments, the first sealing part 611 and the second sealing part 612 may be separately formed, and this is not specifically limited.

[0058] In some embodiments, the second sealing portion 612 has an inclined guide surface 612a on the side away from the piston 530.

[0059] Because the second sealing part 612 is inclined, the guide surface 612a can guide the water to a certain extent during the movement of the piston 530, thereby reducing the resistance to the movement of the piston 530, improving the smoothness of the movement of the piston 530, and ensuring the pumping and drainage effect.

[0060] Specifically, the guide surface 612a can be a conical surface, that is, the circumferential surface of the second sealing part 612 away from the piston 530 is an inclined surface, which can enhance the guiding effect on water, further reduce the resistance of the piston 530 movement, improve the smoothness of the piston 530 movement, and ensure the pumping and drainage effect.

[0061] In some implementations, please refer to Figure 5 and Figure 6 In the first sealing body 610 and the piston 530, one has a snap-fit ​​part 613 and the other has a snap-fit ​​groove 531, and the snap-fit ​​part 613 snaps into the snap-fit ​​groove 531.

[0062] The first sealing body 610 may have a snap-fit ​​portion 613 and the piston 530 may have a snap-fit ​​groove 531, or the first sealing body 610 may have a snap-fit ​​groove 531 and the piston 530 may have a snap-fit ​​portion 613; there is no limitation on this. The snap-fit ​​portion 613 and the snap-fit ​​groove 531 can position the first sealing element 600 and enhance the installation stability of the first sealing element 600 on the piston 530, reducing the possibility of the first sealing element 600 falling off the piston 530 and ensuring the sealing effect.

[0063] The snap-fit ​​portion 613 can be made of elastic material and is interference-fitted with the snap-fit ​​groove 531 to improve the fixing effect between the snap-fit ​​portion 613 and the snap-fit ​​groove 531, thereby further improving the installation stability of the first seal 600 on the piston 530 and ensuring the sealing effect.

[0064] The specific structure of the first sealing element 600 has been described above. The specific structure of the second sealing element 700 will be described in detail below.

[0065] In some implementations... Figure 11 It shows Figure 10 For a cross-sectional view of the second seal, please refer to [link / reference]. Figure 11 The second seal 700 has a first sealing surface 711 and a first guide surface 721. A portion of the first sealing surface 711 abuts against the piston 530. The first guide surface 721 is disposed on the side of the second seal 700 close to the first seal 600. In the direction of the second seal 700 toward the first seal 600, the first guide surface 721 is inclined toward the first sealing surface 711.

[0066] When no water flows in, a portion of the first sealing surface 711 abuts against the piston 530, meaning there is a gap between the first sealing surface 711 and the piston 530. Since the first guide surface 721 is inclined toward the first sealing surface 711, when water flows into the second seal 700, the first guide surface 721 will be under pressure. Because the second seal 700 is elastic, under pressure, the remaining portion of the first sealing surface 711 will also deform to abut against the piston 530, increasing the sealing area between the first sealing surface 711 and the piston 530. The greater the water flow impact, the greater the pressure on the first guide surface 721, and the tighter the abutment between the first sealing surface 711 and the piston 530. The better the sealing effect between the second seal 700 and the piston 530, the less water and impurities enter the waterless chamber 522, ensuring the smooth movement of the piston 530 and the pumping and draining effect.

[0067] In some embodiments, the first sealing surface 711 is arc-shaped, and the inner arc surface of the first sealing surface 711 faces the piston 530.

[0068] When no water flows in, the two ends of the first sealing surface 711 abut against the piston 530, and there is a gap between the arched part in the middle and the piston 530. When the first guide surface 721 is subjected to water pressure, the first sealing surface 711 deforms elastically under the pressure, so that the middle part also fits against the piston 530, increasing the sealing area between the first sealing surface 711 and the piston 530.

[0069] In some embodiments, the second seal 700 further has a second sealing surface 731 and a second guide surface 722. A portion of the second sealing surface 731 abuts against the housing 520, and the second guide surface 722 is disposed on the side of the second seal 700 close to the first seal 600. In the direction of the second seal 700 toward the first seal 600, the second guide surface 722 is inclined toward the second sealing surface 731.

[0070] When no water flows in, a portion of the second sealing surface 731 abuts against the housing 520, meaning there is a gap between the second sealing surface 731 and the housing 520. Since the second guide surface 722 is inclined toward the second sealing surface 731, when water flows into the second seal 700, the second guide surface 722 will be under pressure. Because the second seal 700 is elastic, under pressure, the remaining portion of the second sealing surface 731 will also deform to abut against the housing 520, increasing the sealing area between the second sealing surface 731 and the housing 520. The greater the water flow impact, the greater the pressure on the second guide surface 722, and the tighter the abutment between the second sealing surface 731 and the housing 520. The better the sealing effect between the second seal 700 and the housing 520, the less water and impurities enter the waterless cavity 522, ensuring the smooth movement of the piston 530 and the pumping and draining effect.

[0071] In some embodiments, the second sealing surface 731 is arc-shaped, and the inner arc surface of the second sealing surface 731 faces the housing 520.

[0072] When no water flows in, the two ends of the second sealing surface 731 abut against the housing 520, and there is a gap between the middle arched part and the housing 520. When the second guide surface 722 is subjected to water pressure, the second sealing surface 731 deforms elastically under the pressure, so that the middle part also fits against the housing 520, increasing the sealing area between the second sealing surface 731 and the housing 520.

[0073] It should be noted that the second seal 700 may also be provided with a first guide surface 721 and a second guide surface 722 on the side away from the first seal 600, so that the second seal 700 has a symmetrical structure. Therefore, when installing the second seal 700, it is possible to install it regardless of which side faces the first seal 600, which improves the ease of installation of the second seal 700.

[0074] In some embodiments, the second seal 700 has a guide groove 740, the guide groove 740 having a first guide surface 721 and a second guide surface 722. In the direction of the second seal 700 toward the first seal 600, the first guide surface 721 is inclined in a direction away from the second guide surface 722, and the second guide surface 722 is inclined in a direction away from the first guide surface 721.

[0075] Since the first guide surface 721 is inclined away from the second guide surface 722, and the second guide surface 722 is inclined away from the first guide surface 721, when the water flows into the guide groove 740, both the first guide surface 721 and the second guide surface 722 will be subjected to pressure. Since the second seal 700 is elastic, the second seal 700 will abut more tightly against the piston 530 and the housing 520 under pressure, thus achieving a better sealing effect.

[0076] In some implementations... Figure 9 It shows Figure 4 A schematic diagram of the structure of the second seal. Figure 10 It shows Figure 9 Please refer to the structural schematic diagram of the second seal from another perspective. Figures 9-11 The second seal 700 includes a third sealing portion 710, a fourth sealing portion 720 and a fifth sealing portion 730. The fourth sealing portion 720 is connected between the third sealing portion 710 and the fifth sealing portion 730. The third sealing portion 710 abuts against the piston 530 and the fifth sealing portion 730 abuts against the housing 520 to form a seal between the piston 530 and the housing 520.

[0077] The third sealing part 710, the fourth sealing part 720, and the fifth sealing part 730 can all be annular structures. The third sealing part 710 is arranged around the periphery of the piston 530, the fifth sealing part 730 is arranged around the periphery of the housing 520, and the fourth sealing part 720 is connected between the third sealing part 710 and the fifth sealing part 730. Since the third sealing part 710 and the fifth sealing part 730 need to abut against the piston 530 and the housing 520 respectively to form a sealing surface, a certain sealing area needs to be ensured. Therefore, the cross-sectional dimensions of the third sealing part 710 and the fifth sealing part 730 can be larger than the cross-sectional dimensions of the fourth sealing part 720.

[0078] Specifically, the first sealing surface 711 and the first guide surface 721 are both disposed in the third sealing part 710, and the second sealing surface 731 and the second guide surface 722 are both disposed in the fifth sealing part 730. The third sealing part 710, the fourth sealing part 720, and the fifth sealing part 730 together form a guide groove 740. Since the first guide surface 721 is inclined away from the second guide surface 722, and the second guide surface 722 is inclined away from the first guide surface 721, when water flows into the guide groove 740, both the first guide surface 721 and the second guide surface 722 will be subjected to pressure. Since the second sealing member 700 is elastic, the portions of the third sealing part 710 and the second sealing part 612 that are close to the first sealing member 600 will move in opposite directions under pressure, making the first sealing member 600 and the second sealing surface 731 fit more tightly against the piston 530 and the housing 520, respectively, thus achieving a better sealing effect.

[0079] In some implementations, please refer to Figure 5 The piston 530 has a mounting groove 532 on its periphery, and the second seal 700 is disposed in the mounting groove 532 so that the second seal 700 is more securely installed on the piston 530.

[0080] In some implementations... Figure 12 It shows Figure 4 Please refer to the structural diagram of the piston. Figure 12The piston 530 is provided with a top plate 533, a partition plate 534 and a bottom plate 535 at intervals around its periphery. A mounting groove 532 is formed between the top plate 533 and the partition plate 534 for mounting a seal. The partition plate 534 and the bottom plate 535 form a snap-fit ​​groove 531 to snap with the snap-fit ​​part 613 on the first sealing body 610. Of course, in order not to affect the movement of the piston 530, the top plate 533, the partition plate 534 and the bottom plate 535 are all provided with a certain gap from the housing 520. The cross-sectional length of the bottom plate 535 is shorter than the cross-sectional length of the partition plate 534 so that a sufficient gap can be formed between the bottom plate 535 and the housing 520 to install the first sealing body 610.

[0081] In some embodiments, piston 530 includes a first piston section 536 and a second piston section 537, the first piston section 536 and the second piston section 537 being detachably connected, a first seal 600 being disposed on the first piston section 536, and a second seal 700 being disposed on the second piston section 537.

[0082] When assembling piston 530, the first seal 600 can be installed on the first piston section 536, and the second seal 700 can be installed on the second piston section 537. Then, the first piston section 536 and the second piston section 537 can be connected together. This facilitates the installation of the first seal 600 and the second seal 700. The first piston section 536 and the second piston section 537 can be connected by means of screws, snap-fits, etc., without limitation.

[0083] In some implementations, please refer to Figure 3 and Figure 4 The water system 10 also includes an inlet valve 300, an outlet valve 400, and a drive assembly 510. The inlet valve 300 is located in the inlet pipe 100, the outlet valve 400 is located in the outlet pipe 200, and the drive assembly 510 is connected to the piston 530 for transmission.

[0084] The drive assembly 510, piston 530 and housing 520 constitute the drive mechanism 500, which is used to generate power to transport external water to the water system 10 through the inlet pipe 100 when the inlet valve 300 is open, so as to realize water pumping, and to transport water in the water system 10 to the outside through the outlet pipe 200 when the outlet valve 400 is open, so as to realize drainage.

[0085] The inlet pipe 100 can be connected to a container holding liquid. When the drive mechanism 500 pumps water, the inlet valve 300 needs to be opened to allow water in the container to be transported to the water system 10 through the inlet pipe 100, while the outlet valve 400 needs to be closed to prevent external air or impurities from being transported into the water system 10. When the drive mechanism 500 drains water, the outlet valve 400 needs to be opened to allow water in the water system 10 to be discharged through the outlet pipe 200, while the inlet valve 300 needs to be closed to prevent water in the water system 10 from flowing back into the container. Therefore, whether pumping or draining water, the inlet valve 300 and the outlet valve 400 must always be in a state where one is open and the other is closed. The drive assembly 510 is used to drive the piston 530 to reciprocate along the axial direction of the housing 520. The housing 520 can be cylindrical, cuboid, etc., and there are no restrictions on this. The movement of piston 530 within housing 520 can open inlet valve 300 and close outlet valve 400; or close inlet valve 300 and open outlet valve 400. In other words, by controlling the drive assembly 510 to drive piston 530, inlet valve 300 can be opened while outlet valve 400 is closed, or inlet valve 300 can be closed while outlet valve 400 is opened, thus achieving pumping or draining without the need to separately control the opening and closing of inlet valve 300 and outlet valve 400, thereby reducing the steps of pumping and draining and improving pumping and draining efficiency.

[0086] Furthermore, the inlet valve 300 and outlet valve 400 can be opened or closed by the movement of the piston 530 without the need for electromagnetic control, thereby reducing the use of solenoid valves and making the overall structure of the water system 10 more simplified.

[0087] In some embodiments, when the piston 530 moves in the first direction, the inlet valve 300 opens and the outlet valve 400 closes; when the piston 530 moves in the second direction, the inlet valve 300 closes and the outlet valve 400 opens.

[0088] Clearly, the first direction is opposite to the second direction. Since the inlet valve 300 being open and the outlet valve 400 being closed, and the inlet valve 300 being closed and the outlet valve 400 being open, are two completely opposite states, the piston 530 moves in opposite directions to achieve these two different states. That is, when water needs to be pumped, the drive assembly 510 drives the piston 530 to move in the first direction, while when water needs to be drained, the drive assembly 510 drives the piston 530 to move in the second direction.

[0089] In some embodiments, the housing 520 is capable of containing water flowing in through the inlet pipe 100, and the water in the housing 520 is capable of being discharged through the outlet pipe 200.

[0090] The movement of the drive mechanism 500 causes the inlet valve 300 to open while the outlet valve 400 closes, or vice versa. When the inlet valve 300 opens, external water enters the drive mechanism 500 through the inlet pipe 100. Because the outlet valve 400 is closed, the water cannot be discharged immediately and must be temporarily stored in the drive mechanism 500 until the drive mechanism 500 moves to close the inlet valve 300 and open the outlet valve 400, at which point the water can be discharged through the outlet pipe 200. The housing 520 is the component in the drive mechanism 500 used to contain water. After water enters the housing 520 through the inlet pipe 100, it can be stored in the housing 520 until the drive mechanism 500 moves to close the inlet valve 300 and open the outlet valve 400, allowing the water in the housing 520 to be discharged through the outlet pipe 200.

[0091] In some implementations... Figure 13 It shows Figure 3 For a cross-sectional view of the drive mechanism, please refer to [link / reference]. Figure 13 The inlet pipe 100 and the outlet pipe 200 are connected to the water chamber 521, and part of the drive assembly 510 is located in the waterless chamber 522.

[0092] The inlet pipe 100 and outlet pipe 200 are connected to the water-filled chamber 521, which is used to hold water during pumping and drainage. When pumping, water enters the housing 520 through the water-filled chamber 521, and when draining, water is discharged from the water-filled chamber 521 through the outlet pipe 200. Part of the drive assembly 510 is located in the dry chamber 522 to prevent the drive assembly 510 from interfering with the inlet pipe 100 and outlet pipe 200.

[0093] Furthermore, since there is a water cavity 521 for holding water, part of the drive assembly 510 is located in the waterless cavity 522, that is, the functions of drive and water tank are integrated into the housing 520, which makes the overall space occupancy of the water system 10 smaller.

[0094] For ease of description, the two opposite ends of the housing 520 are named the first end 523 and the second end 524, respectively. The water-filled cavity 521 is located near the first end 523, and the waterless cavity 522 is located near the second end 524. When the piston 530 moves from the first end 523 to the second end 524, the volume of the water-filled cavity 521 gradually increases, while the volume of the waterless cavity 522 gradually decreases. The air in the waterless cavity 522 is compressed and becomes positive pressure, thus creating negative pressure in the water-filled cavity 521. External water can be drawn into the water-filled cavity under the suction of the negative pressure. When the piston 530 moves from the second end 524 to the first end 523, the volume of the waterless cavity 522 gradually increases, while the volume of the water-filled cavity 521 gradually decreases. The air in the water-filled cavity 521 is compressed and becomes positive pressure, allowing the water in the water-filled cavity 521 to be discharged under the pressure of the piston 530, thereby achieving drainage.

[0095] That is, when water needs to be pumped, piston 530 needs to move from the first end 523 to the second end 524, and when water needs to be drained, piston 530 needs to move from the second end 524 to the first end 523. Since the inlet valve 300 is open and the outlet valve 400 is closed when piston 530 moves in the first direction, and the inlet valve 300 is closed and the outlet valve 400 is open when piston 530 moves in the second direction, the first direction is the direction from the first end 523 to the second end 524, and the second direction is the direction from the second end 524 to the first end 523.

[0096] In some implementations... Figure 14 It shows Figure 3 Please refer to the structural diagram of the inlet valve and inlet pipe. Figure 14 The inlet valve 300 includes a first valve body 310 and a first valve core 320 disposed within the first valve body 310. The first valve body 310 has a first inlet 311 and a first outlet 312. The first outlet 312 is connected to the housing 520. The first valve core 320 can connect or disconnect the first inlet 311 and the first outlet 312 when the piston 530 moves.

[0097] The first valve core 320 can be made of elastic materials such as rubber or silicone. The first inlet 311 and the first outlet 312 can be arranged opposite each other. During the movement of the piston 530 in the housing 520, the air pressure in the housing 520 will change. Since the first outlet 312 is connected to the housing 520, the air pressure in the first valve body 310 will also change, causing the first valve core 320 to deform under the action of air pressure, thereby connecting or disconnecting the first inlet 311 and the first outlet 312.

[0098] In some embodiments, the first valve core 320 has a first opening 321 and a second opening 322 communicating with the first opening 321. The first opening 321 is communicating with the first inlet 311, and the second opening 322 can be opened or closed when the piston 530 moves.

[0099] The first opening 321 is located near the first inlet 311, and the second opening 322 is located near the first outlet 312. There may be a gap between the second opening 322 and the first outlet 312, or they may be flush; this is not limited. Since the first outlet 312 is connected to the housing 520, when the piston 530 moves in the first direction, the volume of the water chamber 521 increases, and the pressure decreases. Consequently, the pressure in the first valve body 310 also decreases, becoming less than the pressure inside the first valve core 320. This results in the inner pressure of the first valve core 320 being greater than the outer pressure. Because the first valve core 320 is elastic, it will expand outwards under the inner pressure, causing the second opening 322 to open, thus connecting the first valve core 320 to the first inlet 311. 1 and the first water outlet 312; when the piston 530 moves along the second direction, the volume of the water chamber 521 decreases and the pressure increases. The pressure in the first valve body 310 also increases accordingly and is greater than the pressure inside the first valve core 320. This makes the pressure on the outside of the first valve core 320 greater than the pressure on the inside. Since the first valve core 320 is elastic, it will be squeezed inward under the pressure on the outside, causing the second opening 322 to close. Thus, the first valve core 320 cuts off the first water inlet 311 and the first water outlet 312.

[0100] Specifically, Figure 15 It shows Figure 14 Please refer to the structural diagram of the first valve core. Figure 14 and Figure 15 The first valve core 320 has a first channel 323 that communicates with both the first opening 321 and the second opening 322. The first channel 323 has two opposing first sidewalls 324 that enclose the second opening 322. When the first valve core 320 is pressed inward under external pressure, the two first sidewalls 324 move relative to each other and press together, thus closing the second opening 322. When the first valve core 320 is pushed outward under external pressure, the two first sidewalls 324 separate, thus opening the second opening 322.

[0101] It should be noted that the size of the first opening 321 is much larger than the size of the second opening 322. When the first valve core 320 is squeezed inward under the pressure from the outside, the second opening 322 will close under the pressure difference. At the same time, the first opening 321 will also undergo a certain deformation, but the deformation is not enough to completely close the first opening 321. Therefore, it does not affect the connection between the first opening 321 and the first inlet 311.

[0102] In some embodiments, the first valve core 320 is fixedly connected to the first valve body 310.

[0103] Since the first outlet 312 is connected to the housing 520, that is, along the direction of the inlet pipe 100, the first outlet 312 is closer to the housing 520 than the first inlet 311. Therefore, when the piston 530 moves in the first direction, causing the volume of the water chamber 521 to increase and the pressure to decrease, the pressure at the first outlet 312 will decrease before that at the first inlet 311. That is, the pressure at the first inlet 311 is greater than the pressure at the first outlet 312. Since air flows from a place with high pressure to a place with low pressure, the first valve core 320 will tend to move towards the first outlet 312 under the action of the pressure difference, causing the first opening 321 to separate from the first inlet 311. Therefore, by fixing the first valve core 320 to the first valve body 310, the situation where the first valve core 320 moves towards the first outlet 312 and causes the first opening 321 to separate from the first inlet 311 can be avoided to a certain extent.

[0104] Specifically, the first valve core 320 and the first valve body 310 can be fixedly connected by detachable means such as screwing or snap-fitting, and there are no restrictions on this.

[0105] In some implementations... Figure 16 It shows Figure 3 Please refer to the structural diagram of the outlet valve and outlet pipe. Figure 16 The outlet valve 400 includes a second valve body 410 and a second valve core 420 disposed in the second valve body. The second valve body has a second inlet 411 and a second outlet 412. The second inlet 411 is connected to the housing 520. The second valve core 420 can connect or disconnect the second inlet 411 and the second outlet 412 when the piston 530 moves.

[0106] The second valve core 420 can be made of elastic materials such as rubber or silicone. The second inlet 411 and the second outlet 412 can be arranged opposite to each other. During the movement of the piston 530 in the housing 520, the air pressure in the housing 520 will change. Since the second valve core 420 is movably disposed in the second valve body 410 and the second inlet 411 is connected to the housing 520, the air pressure in the second valve body 410 will also change, causing the second valve core 420 to deform, thereby connecting or disconnecting the second inlet 411 and the second outlet 412.

[0107] In some embodiments, the second valve core 420 has a third opening 421 and a fourth opening 422 communicating with the third opening 421. The third opening 421 is communicating with the second inlet 411, and the fourth opening 422 can be opened or closed when the piston 530 moves.

[0108] The third opening 421 is located near the second inlet 411, and the fourth opening 422 is located near the second outlet 412. There may be a gap or they may be flush between the fourth opening 422 and the second outlet 412; this is not limited. Since the second inlet 411 is connected to the housing 520, when the piston 530 moves in the first direction, the volume of the water chamber 521 increases, and the pressure decreases. Consequently, the pressure in the second valve core 420 also decreases, becoming less than the pressure in the second valve body 410. This results in the inner pressure of the second valve core 420 being less than the outer pressure. Because the second valve core 420 is elastic, it will be squeezed inward under the outer pressure, causing the fourth opening 422 to close and the second valve core 420 to cut off the second inlet 411. 1. Second water outlet 412; When piston 530 moves along the second direction, the volume of water chamber 521 decreases and the pressure increases. The pressure in the second valve core 420 also increases accordingly and is greater than the pressure in the second valve body 410. This makes the inner pressure of the second valve core 420 greater than the outer pressure. Since the second valve core 420 is elastic, it will be pushed outward under the action of the inner pressure, causing the fourth opening 422 to open. The second valve core 420 connects the second water inlet 411 and the second water outlet 412.

[0109] Specifically, Figure 17 It shows Figure 16 Please refer to the structural diagram of the second valve core. Figure 16 and Figure 17 The second valve core 420 has a second channel 423 that communicates with both the third opening 421 and the fourth opening 422. The second channel 423 has two opposing second sidewalls 424 that enclose the fourth opening 422. When the second valve core 420 is pressed inward under external pressure, the two second sidewalls 424 move relative to each other and press together, thus closing the fourth opening 422. When the second valve core 420 is pushed outward under external pressure, the two second sidewalls 424 separate, thus opening the fourth opening 422.

[0110] It should be noted that the size of the third opening 421 is much larger than that of the fourth opening 422. When the second valve core 420 is squeezed inward under the pressure from the outside, the fourth opening 422 will close under the pressure difference. At the same time, the third opening 421 will also undergo some deformation, but this deformation is not enough to completely close the third opening 421. Therefore, it does not affect the connection between the third opening 421 and the second inlet 411.

[0111] In some embodiments, the second valve core 420 is fixedly connected to the second valve body 410.

[0112] Since the second inlet 411 is connected to the housing 520 (i.e., along the direction of the inlet pipe 100), the second inlet 411 is closer to the housing 520 than the second outlet 412. Therefore, when the piston 530 moves in the first direction, increasing the volume of the water chamber 521 and decreasing the pressure, the pressure at the second inlet 411 will decrease before that at the second outlet 412. Since air flows from areas of high pressure to areas of low pressure, the second valve core 420 will tend to move towards the second outlet 412 under the pressure difference, causing the third opening 421 to separate from the second inlet 411. Therefore, by fixing the second valve core 420 to the second valve body 410, the movement of the second valve core 420 towards the second outlet 412, thus preventing the separation of the third opening 421 from the second inlet 411, can be prevented to some extent.

[0113] Specifically, the second valve core 420 and the second valve body 410 can be fixedly connected by detachable means such as screwing or snap-fitting, and there are no restrictions on this.

[0114] In some implementations, please refer to Figure 14 and Figure 16 The inlet valve 300 includes a first valve body 310 and a first valve core 320 disposed within the first valve body 310. The first valve body 310 has a first inlet 311 and a first outlet 312, and the first outlet 312 is connected to the housing 520. The outlet valve 400 includes a second valve body and a second valve core 420 disposed within the second valve body. The second valve body has a second inlet 411 and a second outlet 412, and the second inlet 411 is connected to the housing 520. The movement of the piston 530 can cause the first valve core 320 to connect the first inlet 311 and the first outlet 312, and the second valve core 420 to cut off the second inlet 411 and the second outlet 412; or the first valve core 320 cuts off the first inlet 311 and the first outlet 312, and the second valve core 420 connects the second inlet 411 and the second outlet 412.

[0115] During the movement of piston 530 within housing 520, the air pressure within housing 520 changes. Since the first outlet 312 and the second inlet 411 are connected to housing 520, the air pressure within the first valve body 310 and the second valve body 410 also changes, causing the first valve core 320 and the second valve core 420 to deform simultaneously under the influence of air pressure. Furthermore, the deformation directions of the first valve core 320 and the second valve core 420 are opposite. That is, when the first valve core 320 connects the first inlet 311 and the first outlet 312, the second valve core 420 cuts off the second inlet 411 and the second outlet 412; or when the first valve core 320 cuts off the first inlet 311 and the first outlet 312, the second valve core 420 connects the second inlet 411 and the second outlet 412. Therefore, by simply controlling the movement of piston 530, the inlet valve 300 and outlet valve 400 can be switched on and off simultaneously, without the need to control them separately. This reduces the number of pumping and draining steps and improves pumping and draining efficiency.

[0116] In some implementations... Figure 18 It shows Figure 3 A cross-sectional view of the central drive mechanism from another perspective. Figure 19 It shows Figure 3 Please refer to the assembly diagram of the drive assembly and piston. Figure 18 and Figure 19 The drive assembly 510 includes a driver 511 and a transmission assembly 512. The driver 511 is connected to the transmission assembly 512, and the transmission assembly 512 is connected to the piston 530. The driver 511 can drive the transmission assembly 512 to rotate so as to drive the piston 530 to move.

[0117] The transmission assembly 512 can drive the piston 530 to move in a first direction within the housing 520 by rotation. After the transmission assembly 512 rotates half a turn, its continued rotation drives the piston 530 to move in a second direction within the housing 520. After another half-turn, the piston 530 moves in the first direction again, and so on. That is, for every full rotation of the transmission assembly 512, the piston 530 completes one linear reciprocating motion within the housing 520. Therefore, with each half-turn rotation of the transmission assembly 512, the direction of movement of the piston 530 can switch between the first and second directions, allowing the drive mechanism 500 to switch between pumping and draining. The transmission assembly 512 can rotate clockwise or counterclockwise without restriction.

[0118] The transmission assembly 512 includes a transmission member 512a, a rotating member 512b, and a connecting rod 512c. The transmission member 512a is driven by the driver 511, the rotating member 512b is driven by the transmission member 512a, and the connecting rod 512c is driven by the rotating member 512b. A portion of the connecting rod 512c is disposed in the rodless chamber and is driven by the piston 530. The driver 511 can drive the transmission member 512a to rotate, so that the rotating member 512b can rotate relative to the transmission member 512a, thereby driving the piston 530 to move.

[0119] Specifically, the driver 511 can be a motor, the transmission component 512a is a worm gear, and the rotating component 512b is a planetary gear train, with the worm gear and the planetary gear train coaxially connected. That is, the motor drives the worm gear to rotate, which in turn drives the worm wheel to rotate, and the planetary gear train rotates accordingly, driving the connecting rod 512c to perform linear reciprocating motion, thereby driving the piston 530 to perform linear reciprocating motion within the housing 520.

[0120] Based on the same inventive concept, please refer to Figure 1 and Figure 2 This application also provides a cleaning base station 1, which can be applied to a sweeping robot. It includes a water tank 20 and a water system 10. The water tank 20 stores wastewater. An inlet pipe 100 is connected to the water tank 20, and an outlet pipe 200 is connected to a sewer. When the water system 10 pumps water, the wastewater in the water tank 20 enters the housing 520 through the inlet pipe 100. When the water system 10 drains water, the wastewater in the housing 520 is discharged into the sewer through the outlet pipe 200. The beneficial effects of the cleaning base station 1 provided in this application are the same as those of the water system 10 described above, and will not be repeated here.

[0121] Based on the same inventive concept, this application also provides a cleaning system, including the cleaning base station 1 described above or the water system 10 described above. The cleaning system provided in this application can be a robotic vacuum cleaner, a floor scrubber, etc. The beneficial effects of the cleaning system provided in this application are the same as those of the water system 10 described above, and will not be repeated here.

[0122] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0123] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0124] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A waterway system, characterized in that, include: A housing and a piston, wherein the piston is movably disposed within the housing; The first seal and the second seal are both disposed between the piston and the housing, and are arranged sequentially along the direction of piston movement; Both the inlet pipe and the outlet pipe are connected to the housing.

2. The water system according to claim 1, wherein, The first seal includes a first sealing body and a protrusion protruding from the first sealing body. The first sealing body is sleeved on the piston, and the protrusion can contact the housing.

3. The water system according to claim 2, wherein, The protrusions are multiple, and the multiple protrusions are spaced apart along the movement direction of the piston.

4. The water system according to claim 2, wherein, The first sealing body includes a first sealing part and a second sealing part. The first sealing part is arranged around the periphery of the piston, and the second sealing part is covered on the end of the piston. The protrusion is disposed on the first sealing part.

5. The water system according to claim 4, wherein, The second sealing part has an inclined guide surface on the side away from the piston.

6. The water system according to claim 2, wherein, Of the first sealing body and the piston, one has a snap-fit ​​portion and the other has a snap-fit ​​groove, wherein the snap-fit ​​portion snaps into the snap-fit ​​groove.

7. The water system according to any one of claims 1-6, wherein, The second seal has a first sealing surface and a first guiding surface. A portion of the first sealing surface abuts against the piston. The first guiding surface is disposed on the side of the second seal close to the first seal. In the direction from the second seal to the first seal, the first guiding surface is inclined toward the first sealing surface.

8. The water system according to claim 7, wherein, The first sealing surface is arc-shaped, and the inner arc surface of the first sealing surface faces the piston.

9. The water system according to any one of claims 1-6, wherein, The second seal also has a second sealing surface and a second guiding surface. A portion of the second sealing surface abuts against the housing. The second guiding surface is disposed on the side of the second seal close to the first seal. In the direction from the second seal to the first seal, the second guiding surface is inclined toward the second sealing surface.

10. The water system according to claim 9, wherein, The second sealing surface is arc-shaped, and the inner arc surface of the second sealing surface faces the housing.

11. The water system according to any one of claims 1-6, wherein, The second seal has a guide groove, which has a first guide surface and a second guide surface. In the direction from the second seal to the first seal, the first guide surface is inclined in a direction away from the second guide surface, and the second guide surface is inclined in a direction away from the first guide surface.

12. The water system according to any one of claims 1-6, wherein, The second sealing element includes a third sealing part, a fourth sealing part, and a fifth sealing part. The fourth sealing part is connected between the third sealing part and the fifth sealing part. The third sealing part abuts against the piston, and the fifth sealing part abuts against the housing.

13. The water system according to any one of claims 1-6, wherein, The piston has a mounting groove on its circumference, and the second seal is disposed in the mounting groove.

14. The water system according to any one of claims 1-6, wherein, The piston includes a first piston section and a second piston section, which are detachably connected. The first seal is disposed on the first piston section, and the second seal is disposed on the second piston section.

15. The water system according to any one of claims 1-6, wherein, The piston divides the housing into a water-filled chamber and a waterless chamber, with the first seal positioned near the water-filled chamber and the second seal positioned near the waterless chamber.

16. A clean base station, wherein, It includes a water tank and a water system as described in any one of claims 1-15, wherein the inlet pipe is connected to the water tank and the outlet pipe is connected to a sewer.

17. A cleaning system, wherein, This includes a clean base station as described in claim 16 or a water system as described in any one of claims 1-15.

Images