Fluid series-parallel dialing structure, fluid pump and pool cleaner

Abstract

The utility model relates to a kind of fluid series-parallel connection dialing structure and fluid pump and pool cleaner, including outer shell and switching mechanism, at least two cavities are equipped in outer shell, switching mechanism is used for cavity series-parallel connection switching, adjusting part is connected with switching mechanism, at least part adjusting part is set in outer shell outside.The utility model obtains a kind of fluid series-parallel connection dialing structure and fluid pump and pool cleaner, with following advantages: switching mechanism is driven by the movement of adjusting part, and then the series-parallel connection of cavity is switched by switching mechanism, adjusting part is extended outside, convenient to use, and operation method is simple and easy to understand, and adjusting part needs movement, and misoperation probability is low, pure mechanical operation, safe and reliable, low in cost.

Description

Technical Field

[0001] This utility model relates to the field of fluid transport technology, and in particular to a fluid series-parallel actuation structure, a fluid pump, and a water tank cleaner. Background Technology

[0002] Pumps are essential equipment for transporting media and are the main tools for water supply and drainage. They are widely used in the transportation of liquid media in the petrochemical industry and in farmland irrigation. Existing pumps generally have multiple operating modes, especially for switching between high flow and high head modes. However, they are usually operated by buttons or keypads. These buttons or keypads are electrically connected to the circuit board, and their distinguishability is not high, making them prone to misoperation. In addition, the overall cost is high. Utility Model Content

[0003] One objective of this application is to provide a fluid series-parallel toggle structure, a fluid pump, and a water tank cleaner, which can accurately switch the series-parallel mode of the cavities and is low in cost.

[0004] The technical solution adopted in this application is: a fluid series-parallel toggle structure, including an outer shell and a switching mechanism. The outer shell is provided with at least two cavities. The switching mechanism is used for series-parallel switching of the cavities. An adjusting component is connected to the switching mechanism. At least part of the adjusting component is disposed outside the outer shell.

[0005] Compared with the prior art, the advantages of this application are that the movement of the adjusting component drives the switching mechanism, thereby enabling the series and parallel connection of the switching cavity of the switching mechanism. The adjusting component extends outward, making it convenient to use and the operation method is simple and clear. Moreover, the adjusting component needs to move, so the probability of misoperation is low. It is a purely mechanical operation, which is safe, reliable and low in cost.

[0006] In some embodiments of this application, the outer casing includes a base and a top cover, which are detachably connected; a second notch is provided between the base or the top cover or between the base and the top cover, and an adjusting member extends out of the outer casing through the second notch.

[0007] In some embodiments of this application, the outer casing is provided with an indicator area, which is used to indicate the series-parallel connection state of the cavity where the adjustment member is located.

[0008] A fluid pump includes a first chamber, a second chamber, and a switching mechanism. The first chamber has a first inlet, and the second chamber has a second inlet. A first channel is provided between the first and second chambers, with the inlet of the first channel communicating with the first chamber and the outlet of the first channel communicating with the second chamber. The first channel has a first outlet, and the second chamber has a second outlet. The switching mechanism is located between the first and second chambers and is used to control the opening and closing of the first outlet, the outlet of the first channel, and the second inlet. In parallel operation, the first outlet is open, the outlet of the first channel is closed, and the second inlet is open. In series operation, the first outlet is closed, the outlet of the first channel is open, and the second inlet is closed.

[0009] In some embodiments of this application, the switching mechanism is a valve component, which has a through second channel and a through third channel. In the parallel state, the first outlet is connected to the second channel, the outlet of the first channel is blocked by the valve component, and the second inlet is connected to the third channel. In the series state, the first outlet is blocked by the valve component, the outlet of the first channel is connected to the third channel, and the second inlet is blocked by the valve component.

[0010] Furthermore, the valve component is annular and can rotate relative to the second cavity. The first outlet is located on the rotation path of the second channel, and the second inlet and the outlet of the first channel are located on the rotation path of the third channel. The second inlet and the outlet of the first channel are arranged radially adjacent to each other.

[0011] In some embodiments of this application, a first housing is further included, a first cavity is disposed within the first housing, a portion of a second cavity is disposed on the first housing, and the first cavity is located below the second cavity; a first inlet is disposed on the lower surface of the first housing; a first channel is disposed within the first housing, and the outlet of the first channel is located above the inlet of the first channel; a first outlet is disposed on the upper surface of the first housing; and a second inlet is disposed on the side surface of the first housing.

[0012] Furthermore, it also includes a second housing, which is connected to the first housing, and a second cavity is disposed between the first housing and the second housing; a second outlet is disposed on the side surface of the second housing.

[0013] In some embodiments of this application, a first impeller is provided in the first cavity, the inlet of the first impeller is connected to the first water inlet, and the outlet of the first impeller is connected to the first cavity; a second impeller is provided in the second cavity, the inlet of the second impeller is connected to the second water inlet, and the outlet of the second impeller is connected to the second cavity.

[0014] Furthermore, the second cavity includes an upper cavity and a lower cavity, the second impeller is located in the upper cavity, the inlet of the second impeller is connected to the lower cavity, the second inlet and the outlet of the first channel are both located in the lower cavity, and the second outlet is located in the upper cavity.

[0015] In some embodiments of this application, the first cavity and the second cavity are on the same axis.

[0016] Furthermore, the first channel includes a horizontal channel and an upward channel. One end of the horizontal channel is connected to the first cavity, and the other end is connected to one end of the upward channel. The other end of the upward channel is connected to the second cavity. An arc-shaped surface is provided between the horizontal channel and the upward channel. The first outlet is located in the upward channel. The horizontal channel has arc-shaped surfaces on both sides in the horizontal direction.

[0017] Furthermore, including the aforementioned fluid series-parallel actuation structure, the two cavities are a first cavity and a second cavity; the adjusting component is connected to the valve component, and the adjusting component is used to drive the valve component to rotate; the first cavity and the second cavity are both located inside the outer shell, and the outer shell is provided with a third water outlet and a third water inlet, the third water outlet is connected to the first water outlet and the second water outlet, and the third water inlet is connected to the first water inlet and the second water inlet.

[0018] Furthermore, at least two third channels are provided, and obliquely arranged blocking plates are provided between adjacent third channels. The blocking plates are used to block the outlet of the first channel or the inlet of the second channel. The shape of the outlet of the first channel and the shape of the inlet of the second channel are matched with the blocking plates.

[0019] Furthermore, the first housing is provided with a first differential pressure gap and / or a second differential pressure gap. The first differential pressure gap is located at the outlet of the first channel, and a first differential pressure mating area is formed between the first differential pressure gap and the switching mechanism. The second differential pressure gap is located at the outer edge of the top surface of the first housing, and a second differential pressure mating area is formed between the second differential pressure gap and the switching mechanism.

[0020] A pool cleaner includes a first chamber, a second chamber, and a switching mechanism. The first chamber has a first water inlet, and the second chamber has a second water inlet. A first channel is provided between the first and second chambers, with the inlet of the first channel communicating with the first chamber and the outlet of the first channel communicating with the second chamber. The first channel has a first water outlet, and the second chamber has a second water outlet. The switching mechanism is located between the first and second chambers and is used to control the opening and closing of the first water outlet, the outlet of the first channel, and the second water inlet. In parallel operation, the first water outlet is open, the outlet of the first channel is closed, and the second water inlet is open. In series operation, the first water outlet is closed, the outlet of the first channel is open, and the second water inlet is closed.

[0021] In some embodiments of this application, a fluid series-parallel toggle structure as described above is included, wherein the two cavities are a first cavity and a second cavity; both the first cavity and the second cavity are located inside the outer shell, and the outer shell is provided with a fourth water outlet and a fourth water inlet, the fourth water outlet being connected to the first water outlet and the second water outlet, and the fourth water inlet being connected to the first water inlet and the second water inlet. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this utility model;

[0023] Figure 2 This is a structural schematic diagram of Embodiment 2 of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of Embodiment 2 of this utility model without the outer shell. Figure 1 ;

[0025] Figure 4 This is a schematic diagram of the structure of Embodiment 2 of this utility model without the outer shell. Figure 2 ;

[0026] Figure 5 This is a cross-sectional view of Embodiment 2 of this utility model without the outer shell;

[0027] Figure 6 This is an exploded view of Embodiment 2 of this utility model without the outer shell;

[0028] Figure 7 This is a schematic diagram of the valve component according to Embodiment 2 of this utility model;

[0029] Figure 8 This is a schematic diagram of the structure of the first shell of Embodiment 2 of this utility model;

[0030] Figure 9 This is a top view of the first housing of Embodiment 2 of this utility model;

[0031] Figure 10 yes Figure 9 A cross-sectional view along the AA direction;

[0032] Figure 11 This is a structural schematic diagram of Embodiment 3 of the present invention;

[0033] Figure 12 This is a cross-sectional view of Embodiment 3 of this utility model;

[0034] Figure 13 yes Figure 12 Enlarged view of part B in the image;

[0035] Figure 14 This is a structural schematic diagram of Embodiment 4 of the present invention;

[0036] Figure 15 This is a structural schematic diagram of the valve component in Embodiment 4 of this utility model;

[0037] Figure 16 This is a schematic diagram of the structure of the first shell in Embodiment 4 of this utility model;

[0038] Figure 17 This is a structural schematic diagram of Embodiment 5 of this utility model.

[0039] In the diagram: 1. First cavity; 101. First inlet; 2. Second cavity; 201. Second inlet; 202. Second outlet; 203. Upper cavity; 204. Lower cavity; 3. First channel; 301. First outlet; 302. Horizontal channel; 303. Rising channel; 304. Arc-shaped surface; 4. Valve component; 401. Second channel; 402. Third channel; 403. Adjusting component; 404. Sealing plate; 5. First housing; 501. First 502. First differential pressure gap; 503. Second differential pressure gap; 6. Second housing; 701. First impeller; 702. Second impeller; 8. Outer housing; 801. Third outlet; 802. Third inlet; 803. Base; 804. Top cover; 805. Second gap; 806. Indicator area; 9. Wear-resistant component; 901. First wear-resistant part; 902. Second wear-resistant part; 10. Motor; 12. Fourth outlet; 13. Fourth inlet. Detailed Implementation

[0040] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0041] Example 1:

[0042] This embodiment provides a fluid series-parallel toggle structure, such as Figure 1 As shown, the device includes a housing 8 and a switching mechanism. The housing 8 contains at least two cavities. The switching mechanism is used for switching the series and parallel connections of the cavities. An adjusting member 403 is connected to the switching mechanism, and at least a portion of the adjusting member 403 is located outside the housing 8. The movement of the adjusting member 403 drives the switching mechanism, thereby enabling the switching mechanism to switch the series and parallel connections of the cavities. The adjusting member 403 extends outwards, making it convenient to use and simple to operate. Furthermore, the movement of the adjusting member 403 reduces the probability of accidental touches or incorrect presses, similar to a button. The purely mechanical operation is safe, reliable, and low-cost.

[0043] To ensure the structural reliability of the outer casing 8, the outer casing 8 includes a base 803 and a top cover 804, which are detachably connected. A second notch 805 is provided between the base 803, the top cover 804, or both, allowing the adjusting member 403 to extend out of the outer casing 8. In this embodiment, the second notch 805 is located between the base 803 and the top cover 804. The detachable connection between the base 803 and the top cover 804 facilitates the installation of internal components. The design of the second notch 805 facilitates the extension of the adjusting member 403, and both sides of the second notch 805 simultaneously limit the movement of the adjusting member 403.

[0044] To ensure reliable switching of the adjusting component 403, an indicating area 806 is provided on the outer casing 8. The indicating area 806 is used to indicate the series or parallel connection status of the cavity where the adjusting component 403 is located. The design of the indicating area 806 can clearly indicate whether the adjusting component 403 is in a series or parallel connection state, thus clarifying the operating status and preventing misoperation.

[0045] Example 2:

[0046] This embodiment provides a fluid pump, such as Figures 1-6 As shown, the system includes a first cavity 1, a second cavity 2, and a switching mechanism. The first cavity 1 has a first inlet 101, and the second cavity 2 has a second inlet 201. A first channel 3 is provided between the first cavity 1 and the second cavity 2. The inlet of the first channel 3 is connected to the first cavity 1, and the outlet of the first channel 3 is connected to the second cavity 2. The first channel 3 has a first outlet 301 connected to the outside. The second cavity 2 has a second outlet 202. The switching mechanism is located between the first cavity 1 and the second cavity 2. The switching mechanism is used to control the opening and closing of the first outlet 301, the outlet of the first channel 3, and the second inlet 201. In parallel operation, the first outlet 301 is open, and the outlet of the first channel 3 is closed. When in the closed state, the second inlet 201 is open. Fluid in the first cavity 1 enters through the first inlet 101 and flows out through the first outlet 301. Fluid in the second cavity 2 enters through the second inlet 201 and flows out through the second outlet 202. In the series state, the first outlet 301 is closed, the outlet of the first channel 3 is open, and the second inlet 201 is closed. Fluid in the first cavity 1 flows out sequentially through the outlet of the first channel 3, the second cavity 2, and the second outlet 202. That is, fluid in the first cavity 1 enters through the first inlet 101 and flows out through the first channel 3, and fluid in the second cavity 2 enters through the first channel 3 and flows out through the second outlet 202.

[0047] The switching mechanism enables the switching between series and parallel connections between the first cavity 1 and the second cavity 2, achieving different operating modes. In parallel mode, external fluid enters the first cavity 1 through the first inlet 101 and flows out through the first outlet 301 on the first channel 3. Simultaneously, external fluid also enters the second cavity 2 through the second inlet 201 and flows out through the second outlet 202, achieving high flow rate operation. In series mode, external fluid enters the first cavity 1 through the first inlet 101, enters the second cavity 2 through the outlet of the first channel 3, and finally flows out through the second outlet 202, achieving high head operation.

[0048] For reliable switching, such as Figure 7 As shown, the switching mechanism is a valve component 4, which has a through second channel 401 and a through third channel 402. In parallel mode, the first outlet 301 is connected to the second channel 401, the outlet of the first channel 3 is blocked by the valve component 4, and the second inlet 201 is connected to the third channel 402. In series mode, the first outlet 301 is blocked by the valve component 4, the outlet of the first channel 3 is connected to the third channel 402, and the second inlet 201 is blocked by the valve component 4. The second channel 401 is used to open the first outlet 301. When the second channel 401 is connected to the first outlet 301, the first outlet 301 is in the open state. When the first outlet 301 is blocked by the valve component 4, it is in the closed state. The third channel 402 is used to switch the opening and closing of the outlet of the first channel 3 and the second inlet 201. That is, when the third channel 402 is connected to the outlet of the first channel 3, the second inlet 201 is blocked by the valve component 4 and is in the closed state. When the third channel 402 is connected to the second inlet 201, the outlet of the first channel 3 is blocked by the valve component 4 and is in the closed state.

[0049] For reliable switching, the valve component 4 is annular and can rotate relative to the second cavity 2. The first outlet 301 is located on the rotation path of the second channel 401, and the second inlet 201 and the outlet of the first channel 3 are located on the rotation path of the third channel 402. The second inlet 201 and the outlet of the first channel 3 are arranged radially adjacent to each other. In this embodiment, there are five second inlets 201, five first outlets 301, five first channels 3, five second outlets 202, and one first inlet 101. The second outlets 202, second inlets 201, first outlets 301, and the outlet of the first channel 3 are all evenly distributed around the center of the second cavity 2. A rotary valve 4 is used to switch between series and parallel modes. The switching operation is simple and convenient. The rotation of the valve 4 will cause the second channel 401 and the third channel 402 to rotate synchronously, so that the second channel 401 can be connected to the first outlet 301, and the third channel 402 can be connected to the outlet of the first channel 3 or the second inlet 201. The second inlet 201 and the outlet of the first channel 3 are arranged adjacent to each other, so that the third channel 402 can only be connected to one of them.

[0050] For structural reliability, such as Figure 8 As shown, it also includes a first housing 5, a first cavity 1 disposed inside the first housing 5, a portion of a second cavity 2 disposed on the first housing 5, the first cavity 1 being located below the second cavity 2; a first inlet 101 disposed on the lower surface of the first housing 5; a first channel 3 disposed inside the first housing 5, the outlet of the first channel 3 being located above the inlet of the first channel 3; a first outlet 301 disposed on the upper surface of the first housing 5; and a second inlet 201 disposed on the side surface of the first housing 5.

[0051] For structural reliability, a second housing 6 is also included, which is connected to the first housing 5. A second cavity 2 is disposed between the first housing 5 and the second housing 6. A second outlet 202 is disposed on the side surface of the second housing 6. A valve component 4 is disposed between the first housing 5 and the second housing 6, and the valve component 4 is rotatably connected to the first housing 5.

[0052] To ensure reliable fluid entry, a first impeller 701 is installed in the first cavity 1. The inlet of the first impeller 701 is connected to the first inlet 101, and the outlet of the first impeller 701 is connected to the first cavity 1. A second impeller 702 is installed in the second cavity 2. The inlet of the second impeller 702 is connected to the second inlet 201, and the outlet of the second impeller 702 is connected to the second cavity 2. The first impeller 701 and the second impeller 702 are driven by a motor 10. The design of the first impeller 701 improves the fluid conveying capacity. The design of the second impeller 702, when connected in parallel, allows for synchronous fluid conveying with the first impeller 701, achieving a large flow rate. When operating in series, the first impeller 701 and the second impeller 702 form a two-stage arrangement, increasing the head.

[0053] The inlet of the first channel 3 and the outlet of the first impeller 701 are on the same horizontal plane, which facilitates the fluid carried out by the first impeller 701 to enter the first channel 3; the outlet 202 and the outlet of the second impeller 702 are on the same horizontal plane, which facilitates the fluid carried out by the second impeller 702 to enter the second outlet 202.

[0054] Wear-resistant components 9 are provided on both the first impeller 701 and the second impeller 702. The wear-resistant components 9 are used to reduce the frictional wear of the first housing 5, the second housing 6 and the valve component 4 caused by the rotation of the first impeller 701 and the second impeller 702, thereby extending their service life. The wear-resistant components 9 are disposed between the first impeller 701 and the first housing 5, between the first impeller 701 and the valve component 4, and between the second impeller 702 and the second housing 6. The wear-resistant components 9 include a first wear-resistant component 901 and a second wear-resistant component 902. The first wear-resistant component 901 is connected to the first impeller 701 or the second impeller 702, and the second wear-resistant component 902 is connected to the first housing 5, the second housing 6 or the valve component 4. The first wear-resistant component 901 and the second wear-resistant component 902 are rotatably connected.

[0055] For the second cavity 2 to be reliable, the second cavity 2 includes an upper cavity 203 and a lower cavity 204. The second impeller 702 is located in the upper cavity 203, and the inlet of the second impeller 702 is connected to the lower cavity 204. The second inlet 201 and the outlet of the first channel 3 are both located in the lower cavity 204, and the second outlet 202 is located in the upper cavity 203. The second impeller 702 separates the upper cavity 203 and the lower cavity 204, so that most of the fluid in the lower cavity 204 must pass through the second impeller 702 before entering the upper cavity 203. This ensures that most of the fluid is transported by the second impeller 702, guarantees the pressure and flow rate of the output fluid, and ensures that the fluid movement path is singular and the flow is more stable.

[0056] To reduce volume, the first cavity 1 and the second cavity 2 are on the same axis, and the first cavity 1 and the second cavity 2 are arranged vertically, which can reduce the overall volume.

[0057] For the first channel 3 to be reliable, such as Figure 9 , Figure 10 As shown, the first channel 3 includes a horizontal channel 302 and an ascending channel 303. One end of the horizontal channel 302 is connected to the first cavity 1, and the other end is connected to one end of the ascending channel 303. The other end of the ascending channel 303 is connected to the second cavity 2. An arc-shaped surface 304 is provided between the horizontal channel 302 and the ascending channel 303. The arc-shaped surface 304 can reduce the impact of fluid entering the ascending channel 303 in the horizontal channel 302 and make the conveying smoother. The first outlet 301 is located in the ascending channel 303. The horizontal channel 302 has arc-shaped surfaces on both sides in the horizontal direction. The arc-shaped surfaces can reduce the impact of fluid entering the horizontal channel 302 and make the conveying smoother.

[0058] To facilitate the rotation of valve component 4, a fluid series-parallel actuation structure as described in Embodiment 1 is included. The two cavities are a first cavity 1 and a second cavity 2. An adjusting member 403 is connected to valve component 4 and is used to drive valve component 4 to rotate. The adjusting member 403 extends outwards, making it easier to operate and providing a clear operating position. Both the first cavity 1 and the second cavity 2 are located inside the outer shell 8. The outer shell 8 is provided with a third outlet 801 and a third inlet 802. The third outlet 801 communicates with the first outlet 301 and the second outlet 202, and the third inlet 802 communicates with the first inlet 101 and the second inlet 201. A first notch 501 is provided on the first housing 5, through which the adjusting member 403 extends outwards.

[0059] The third water inlet 802 is located on the base 803, and the third water outlet 801 is located on the top cover 804. The first housing 5 and the second housing 6 are both located inside the outer shell 8; the motor 10 is located inside the second housing 6; a water inlet cavity is formed between the base 803 and the first housing 5, and the water inlet cavity is connected to the first water inlet 101 and the second water inlet 201; a water outlet channel is formed between the top cover 804 and the second housing 6, and the water from the first water outlet 301 and the second water outlet 202 reaches the third water outlet 801 through the water outlet channel.

[0060] Example 3:

[0061] This embodiment provides a water tank cleaner, such as Figures 3-6 , Figures 11-13As shown, the system includes a first cavity 1, a second cavity 2, and a switching mechanism. The first cavity 1 has a first inlet 101, and the second cavity 2 has a second inlet 201. A first channel 3 is provided between the first cavity 1 and the second cavity 2. The inlet of the first channel 3 is connected to the first cavity 1, and the outlet of the first channel 3 is connected to the second cavity 2. The first channel 3 has a first outlet 301 connected to the outside. The second cavity 2 has a second outlet 202. The switching mechanism is located between the first cavity 1 and the second cavity 2. The switching mechanism is used to control the opening and closing of the first outlet 301, the outlet of the first channel 3, and the second inlet 201. In parallel operation, the first outlet 301 is open, and the outlet of the first channel 3 is closed. When in the closed state, the second inlet 201 is open. Fluid in the first cavity 1 enters through the first inlet 101 and flows out through the first outlet 301. Fluid in the second cavity 2 enters through the second inlet 201 and flows out through the second outlet 202. In the series state, the first outlet 301 is closed, the outlet of the first channel 3 is open, and the second inlet 201 is closed. Fluid in the first cavity 1 flows out sequentially through the outlet of the first channel 3, the second cavity 2, and the second outlet 202. That is, fluid in the first cavity 1 enters through the first inlet 101 and flows out through the first channel 3, and fluid in the second cavity 2 enters through the first channel 3 and flows out through the second outlet 202.

[0062] The switching mechanism enables the switching between series and parallel connections between the first cavity 1 and the second cavity 2, achieving different working modes. In parallel mode, external fluid enters the first cavity 1 through the first inlet 101 and flows out through the first outlet 301 on the first channel 3. Simultaneously, external fluid also enters the second cavity 2 through the second inlet 201 and flows out through the second outlet 202, achieving high flow rate operation, suitable for situations with a large amount of water in the pool, and with high working efficiency. In series mode, external fluid enters the first cavity 1 through the first inlet 101, then enters the second cavity 2 through the outlet of the first channel 3, and finally flows out through the second outlet 202, suitable for situations with a small amount of water in the pool and a large amount of solid waste.

[0063] For reliable switching, such as Figure 7As shown, the switching mechanism is a valve component 4, which has a through second channel 401 and a through third channel 402. In parallel mode, the first outlet 301 is connected to the second channel 401, the outlet of the first channel 3 is blocked by the valve component 4, and the second inlet 201 is connected to the third channel 402. In series mode, the first outlet 301 is blocked by the valve component 4, the outlet of the first channel 3 is connected to the third channel 402, and the second inlet 201 is blocked by the valve component 4. The second channel 401 is used to open the first outlet 301. When the second channel 401 is connected to the first outlet 301, the first outlet 301 is in the open state. When the first outlet 301 is blocked by the valve component 4, it is in the closed state. The third channel 402 is used to switch the opening and closing of the outlet of the first channel 3 and the second inlet 201. That is, when the third channel 402 is connected to the outlet of the first channel 3, the second inlet 201 is blocked by the valve component 4 and is in the closed state. When the third channel 402 is connected to the second inlet 201, the outlet of the first channel 3 is blocked by the valve component 4 and is in the closed state.

[0064] For reliable switching, the valve component 4 is annular and can rotate relative to the second cavity 2. The first outlet 301 is located on the rotation path of the second channel 401, and the second inlet 201 and the outlet of the first channel 3 are located on the rotation path of the third channel 402. The second inlet 201 and the outlet of the first channel 3 are arranged radially adjacent to each other. In this embodiment, there are five second inlets 201, five first outlets 301, five first channels 3, five second outlets 202, and one first inlet 101. The second outlets 202, second inlets 201, first outlets 301, and the outlet of the first channel 3 are all evenly distributed around the center of the second cavity 2. A rotary valve 4 is used to switch between series and parallel modes. The switching operation is simple and convenient. The rotation of the valve 4 will cause the second channel 401 and the third channel 402 to rotate synchronously, so that the second channel 401 can be connected to the first outlet 301, and the third channel 402 can be connected to the outlet of the first channel 3 or the second inlet 201. The second inlet 201 and the outlet of the first channel 3 are arranged adjacent to each other, so that the third channel 402 can only be connected to one of them.

[0065] For structural reliability, such as Figure 8 As shown, it also includes a first housing 5, a first cavity 1 disposed inside the first housing 5, a portion of a second cavity 2 disposed on the first housing 5, the first cavity 1 being located below the second cavity 2; a first inlet 101 disposed on the lower surface of the first housing 5; a first channel 3 disposed inside the first housing 5, the outlet of the first channel 3 being located above the inlet of the first channel 3; a first outlet 301 disposed on the upper surface of the first housing 5; and a second inlet 201 disposed on the side surface of the first housing 5.

[0066] For structural reliability, a second housing 6 is also included, which is connected to the first housing 5. A second cavity 2 is disposed between the first housing 5 and the second housing 6. A second outlet 202 is disposed on the side surface of the second housing 6. A valve component 4 is disposed between the first housing 5 and the second housing 6, and the valve component 4 is rotatably connected to the first housing 5.

[0067] To ensure reliable fluid entry, a first impeller 701 is installed in the first cavity 1. The inlet of the first impeller 701 is connected to the first inlet 101, and the outlet of the first impeller 701 is connected to the first cavity 1. A second impeller 702 is installed in the second cavity 2. The inlet of the second impeller 702 is connected to the second inlet 201, and the outlet of the second impeller 702 is connected to the second cavity 2. The first impeller 701 and the second impeller 702 are driven by a motor 10. The design of the first impeller 701 improves the fluid conveying capacity. The design of the second impeller 702, when connected in parallel, allows for synchronous fluid conveying with the first impeller 701, achieving a large flow rate. When operating in series, the first impeller 701 and the second impeller 702 form a two-stage arrangement, increasing the head.

[0068] The inlet of the first channel 3 and the outlet of the first impeller 701 are on the same horizontal plane, which facilitates the fluid carried out by the first impeller 701 to enter the first channel 3; the outlet 202 and the outlet of the second impeller 702 are on the same horizontal plane, which facilitates the fluid carried out by the second impeller 702 to enter the second outlet 202.

[0069] Wear-resistant components 9 are provided on both the first impeller 701 and the second impeller 702. The wear-resistant components 9 are used to reduce the frictional wear of the first housing 5, the second housing 6 and the valve component 4 caused by the rotation of the first impeller 701 and the second impeller 702, thereby extending their service life. The wear-resistant components 9 are disposed between the first impeller 701 and the first housing 5, between the first impeller 701 and the valve component 4, and between the second impeller 702 and the second housing 6. The wear-resistant components 9 include a first wear-resistant component 901 and a second wear-resistant component 902. The first wear-resistant component 901 is connected to the first impeller 701 or the second impeller 702, and the second wear-resistant component 902 is connected to the first housing 5, the second housing 6 or the valve component 4. The first wear-resistant component 901 and the second wear-resistant component 902 are rotatably connected.

[0070] For the second cavity 2 to be reliable, the second cavity 2 includes an upper cavity 203 and a lower cavity 204. The second impeller 702 is located in the upper cavity 203, and the inlet of the second impeller 702 is connected to the lower cavity 204. The second inlet 201 and the outlet of the first channel 3 are both located in the lower cavity 204, and the second outlet 202 is located in the upper cavity 203. The second impeller 702 separates the upper cavity 203 and the lower cavity 204, so that most of the fluid in the lower cavity 204 must pass through the second impeller 702 before entering the upper cavity 203. This ensures that most of the fluid is transported by the second impeller 702, guarantees the pressure and flow rate of the output fluid, and ensures that the fluid movement path is singular and the flow is more stable.

[0071] To reduce volume, the first cavity 1 and the second cavity 2 are on the same axis, and the first cavity 1 and the second cavity 2 are arranged vertically, which can reduce the overall volume.

[0072] For the first channel 3 to be reliable, such as Figure 9 , Figure 10 As shown, the first channel 3 includes a horizontal channel 302 and an ascending channel 303. One end of the horizontal channel 302 is connected to the first cavity 1, and the other end is connected to one end of the ascending channel 303. The other end of the ascending channel 303 is connected to the second cavity 2. An arc-shaped surface 304 is provided between the horizontal channel 302 and the ascending channel 303. The arc-shaped surface 304 can reduce the impact of fluid entering the ascending channel 303 in the horizontal channel 302 and make the conveying smoother. The first outlet 301 is located in the ascending channel 303. The horizontal channel 302 has arc-shaped surfaces on both sides in the horizontal direction. The arc-shaped surfaces can reduce the impact of fluid entering the horizontal channel 302 and make the conveying smoother.

[0073] To facilitate the rotation of valve component 4, a fluid series-parallel actuation structure as described in Embodiment 1 is included. The two cavities are a first cavity 1 and a second cavity 2. An adjusting member 403 is connected to valve component 4 and is used to drive valve component 4 to rotate. The adjusting member 403 extends outwards, making it easier to operate and its operating position is clearly visible. Both the first cavity 1 and the second cavity 2 are located inside the outer shell 8. The outer shell 8 is provided with a fourth outlet 12 and a fourth inlet 13. The fourth outlet 12 communicates with the first outlet 301 and the second outlet 202, and the fourth inlet 13 communicates with the first inlet 101 and the second inlet 201. A first notch 501 is provided on the first housing 5, through which the adjusting member 403 extends outwards.

[0074] The fourth water inlet 13 is located on the base 803, and the fourth water outlet 12 is located on the top cover 804. The first housing 5 and the second housing 6 are both located inside the outer housing 8; the motor 10 is located inside the second housing 6; a water outlet channel is formed between the top cover 804 and the second housing 6, and the water from the first water outlet 301 and the second water outlet 202 reaches the fourth water outlet 12 through the water outlet channel.

[0075] Example 4:

[0076] This embodiment provides a fluid pump designed to ensure smooth liquid flow, such as... Figure 14 , Figure 15 , Figure 16 As shown, in addition to the features described in Embodiment 2, at least two third channels 402 are provided, and obliquely arranged sealing plates 404 are provided between adjacent third channels 402. The sealing plates 404 are used to block the outlet of the first channel 3 or the second inlet 201. The shape of the outlet of the first channel 3 and the shape of the second inlet 201 are matched with the sealing plates 404. Specifically, the sealing plates 404 can be completely fitted with the outlet of the first channel 3, that is, forming a sealing surface to block the outlet of the first channel 3. The sealing plates 404 can also be completely fitted with the second inlet 201, that is, forming a sealing surface to block the second inlet 201. In this embodiment, the sealing plates 404 are oblique surfaces. Of course, the sealing plates 404 can also be curved surfaces.

[0077] The design of the 404 sealing plate ensures reliable sealing; the oblique arrangement of the 404 sealing plate guides the liquid, making the liquid flow more smoothly, and the oblique surface can also increase the outlet area.

[0078] To improve the sealing effect, the first housing 5 is provided with a first differential pressure notch 502, which is located at the outlet of the first channel 3. The first differential pressure notch 502 and the valve component 4 form a first differential pressure mating area, and the valve component 4 can float up and down along the axial direction. The first housing 5 is provided with a second differential pressure notch 503, which is located at the outer edge of the top surface of the first housing 5. The second differential pressure notch 503 and the valve component 4 form a second differential pressure mating area.

[0079] When the fluid pump is working, there is positive pressure above the valve component 4 and negative pressure below it. The valve component 4 is pressed against the first housing 5 by the water pressure difference to form a seal, which can prevent foreign objects from entering and jamming, causing the valve component 4 to fail. The design of the first pressure difference notch 502 increases the area on the valve component 4 where the pressure difference is generated, improving the sealing effect. Moreover, the first pressure difference notch 502 is located on the inner side, providing a good sealing effect on the inner side. The design of the second pressure difference notch 503 increases the area on the valve component 4 where the pressure difference is generated, improving the sealing effect. Moreover, the second pressure difference notch 503 is located on the outer side, providing a good sealing effect on the outer side.

[0080] Example 5:

[0081] This embodiment provides a handheld vacuum cleaner and blower dual-purpose device, such as... Figure 17 As shown, it includes a fluid series-parallel toggle structure as described in Example 1.

[0082] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A fluid series-parallel actuation structure, characterized in that, It includes an outer shell (8) and a switching mechanism. The outer shell (8) has at least two cavities. The switching mechanism is used for series-parallel switching of the cavities. An adjusting member (403) is provided on the outer shell (8). The adjusting member (403) is connected to the switching mechanism. The adjusting member (403) can move relative to the outer shell (8). At least part of the adjusting member (403) is located outside the outer shell (8).

2. The fluid series-parallel actuation structure according to claim 1, characterized in that: The outer shell (8) includes a base (803) and a top cover (804), which are detachably connected; a second notch (805) is provided between the base (803) or the top cover (804) or between the base (803) and the top cover (804), and an adjusting member (403) extends out of the outer shell (8) through the second notch (805).

3. The fluid series-parallel actuation structure according to claim 1, characterized in that: The outer shell (8) is provided with an indicator area (806), which is used to indicate the series and parallel connection state of the cavity where the adjusting member (403) is located.

4. A fluid pump, characterized in that, The device includes a fluid series-parallel actuation structure as described in any one of claims 1-3, a first cavity (1), a second cavity (2), and a switching mechanism. The first cavity (1) is provided with a first inlet (101), and the second cavity (2) is provided with a second inlet (201). A first channel (3) is provided between the first cavity (1) and the second cavity (2). The inlet of the first channel (3) is connected to the first cavity (1), and the outlet of the first channel (3) is connected to the second cavity (2). A first outlet (301) is provided on the first channel (3). A second outlet is provided on the second cavity (2). (202); The switching mechanism is located between the first cavity (1) and the second cavity (2); The switching mechanism is used to control the opening and closing of the first outlet (301), the opening and closing of the outlet of the first channel (3) and the opening and closing of the second inlet (201); In the parallel state, the first outlet (301) is in the open state, the outlet of the first channel (3) is in the closed state, and the second inlet (201) is in the open state; In the series state, the first outlet (301) is in the closed state, the outlet of the first channel (3) is in the open state, and the second inlet (201) is in the closed state.

5. A fluid pump according to claim 4, characterized in that: The switching mechanism is a valve (4), which has a through second channel (401) and a through third channel (402). In parallel mode, the first outlet (301) is connected to the second channel (401), the outlet of the first channel (3) is blocked by the valve (4), and the second inlet (201) is connected to the third channel (402). In series mode, the first outlet (301) is blocked by the valve (4), the outlet of the first channel (3) is connected to the third channel (402), and the second inlet (201) is blocked by the valve (4).

6. A fluid pump according to claim 5, characterized in that: The valve component (4) is annular and can rotate relative to the second cavity (2). The first outlet (301) is located on the rotation path of the second channel (401). The second inlet (201) and the outlet of the first channel (3) are located on the rotation path of the third channel (402). The second inlet (201) and the outlet of the first channel (3) are arranged adjacent to each other in the radial direction.

7. A fluid pump according to claim 4, characterized in that: It also includes a first housing (5), a first cavity (1) disposed inside the first housing (5), a portion of a second cavity (2) disposed on the first housing (5), the first cavity (1) being located below the second cavity (2); a first inlet (101) disposed on the lower surface of the first housing (5); a first channel (3) disposed inside the first housing (5), the outlet of the first channel (3) being located above the inlet of the first channel (3); a first outlet (301) disposed on the upper surface of the first housing (5); a second inlet (201) disposed on the side surface of the first housing (5); and a second housing (6) connected to the first housing (5), the second cavity (2) being disposed between the first housing (5) and the second housing (6); and a second outlet (202) disposed on the side surface of the second housing (6).

8. A fluid pump according to claim 4, characterized in that: The first cavity (1) is provided with a first impeller (701), the inlet of the first impeller (701) is connected to the first inlet (101), and the outlet of the first impeller (701) is connected to the first cavity (1); the second cavity (2) is provided with a second impeller (702), the inlet of the second impeller (702) is connected to the second inlet (201), and the outlet of the second impeller (702) is connected to the second cavity (2); the second cavity (2) includes an upper cavity (203) and a lower cavity (204), the second impeller (702) is located in the upper cavity (203), the inlet of the second impeller (702) is connected to the lower cavity (204), the second inlet (201) and the outlet of the first channel (3) are both located in the lower cavity (204), and the second outlet (202) is located in the upper cavity (203).

9. A fluid pump according to claim 4, characterized in that: The first cavity (1) and the second cavity (2) are on the same axis.

10. A fluid pump according to claim 7, characterized in that: The first channel (3) includes a horizontal channel (302) and an upward channel (303). One end of the horizontal channel (302) is connected to the first cavity (1), and the other end is connected to one end of the upward channel (303). The other end of the upward channel (303) is connected to the second cavity (2). An arc-shaped surface (304) is provided between the horizontal channel (302) and the upward channel (303). The first outlet (301) is located in the upward channel (303). The horizontal channel (302) has arc surfaces on both sides in the horizontal direction.

11. A fluid pump according to claim 6, characterized in that: The two cavities are a first cavity (1) and a second cavity (2). The adjusting component (403) is connected to the valve component (4). The adjusting component (403) is used to drive the valve component (4) to rotate. The first cavity (1) and the second cavity (2) are both located inside the outer shell (8). The outer shell (8) is provided with a third outlet (801) and a third inlet (802). The third outlet (801) is connected to the first outlet (301) and the second outlet (202). The third inlet (802) is connected to the first inlet (101) and the second inlet (201).

12. A fluid pump according to claim 5, characterized in that: At least two third channels (402) are provided, and obliquely arranged blocking plates (404) are provided between adjacent third channels (402). The blocking plates (404) are used to block the outlet of the first channel (3) or the second inlet (201). The shape of the outlet of the first channel (3) and the shape of the second inlet (201) are matched with the blocking plates (404).

13. A fluid pump according to claim 7, characterized in that: The first housing (5) is provided with a first differential pressure gap (502) and / or a second differential pressure gap (503). The first differential pressure gap (502) is located at the outlet of the first channel (3), and a first differential pressure mating area is formed between the first differential pressure gap (502) and the switching mechanism. The second differential pressure gap (503) is located at the outer edge of the top surface of the first housing (5), and a second differential pressure mating area is formed between the second differential pressure gap (503) and the switching mechanism.

14. A pool cleaner, characterized in that, The device includes a fluid series-parallel actuation structure as described in any one of claims 1-2, a first cavity (1), a second cavity (2), and a switching mechanism. The first cavity (1) has a first inlet (101), and the second cavity (2) has a second inlet (201). A first channel (3) is provided between the first cavity (1) and the second cavity (2). The inlet of the first channel (3) is connected to the first cavity (1), and the outlet of the first channel (3) is connected to the second cavity (2). A first outlet (301) is provided on the first channel (3). A second outlet (202) is provided on the second cavity (2). The switching mechanism is located in the first cavity. Between cavity (1) and second cavity (2); the switching mechanism is used to control the opening and closing of the first outlet (301), the opening and closing of the outlet of the first channel (3) and the opening and closing of the second inlet (201); in parallel state, the first outlet (301) is in the open state, the outlet of the first channel (3) is in the closed state, and the second inlet (201) is in the open state; in series state, the first outlet (301) is in the closed state, the outlet of the first channel (3) is in the open state, and the second inlet (201) is in the closed state; the outer shell (8) is provided with a fourth outlet (12) and a fourth inlet (13).

15. A pool cleaner according to claim 14, characterized in that: The two cavities are the first cavity (1) and the second cavity (2); the first cavity (1) and the second cavity (2) are both located inside the outer shell (8), the fourth outlet (12) is connected to the first outlet (301) and the second outlet (202), and the fourth inlet (13) is connected to the first inlet (101) and the second inlet (201).

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