Water circulation system and water pool

Abstract

The utility model discloses a water circulation system and a pool, the water circulation system includes: a water inlet assembly including a water inlet part and a water inlet pipeline, one end of the water inlet pipeline is communicated with the water inlet part, and the water inlet part is used for being arranged on the inner wall of a water containing space and used for supplying water to the water containing space; the water outlet assembly comprises a water outlet part and an out-pool water outlet pipeline, one end of the out-pool water outlet pipeline is connected with the water outlet part, the out-pool water outlet pipeline is used for being arranged outside the water containing space, and the water outlet part is used for being arranged on the inner wall of the water containing space and used for water drainage of the water containing space; the air inlet assembly comprises an air inlet part and an air inlet pipeline, one end of the air inlet pipeline is communicated with the water outlet pipeline outside the pool, the other end of the air inlet pipeline is communicated with the air inlet part, and the air inlet part is used for being communicated with the atmosphere. According to the utility model, air can be provided for the water outlet pipeline outside the pool, a local negative pressure area is destroyed, blockage sundries can be conveniently cleaned or the part of the body sucked by the local negative pressure area is conveniently moved, so that the water circulation system can return to normal work, and the use experience and the safety guarantee of a user are improved.

Description

Technical Field

[0001] This utility model relates to the field of water tank technology, and in particular to a water circulation system and a water tank. Background Technology

[0002] With social development and progress, household water tanks (such as swimming pools) are widely used in modern life, and people are paying more and more attention to the comfort and safety of the pool when using it.

[0003] Pools typically rely on water circulation systems to circulate and filter the water or to circulate and heat it. During actual use, when water enters the water circulation system's outlet through the pool's outlet, a localized negative pressure zone can form at the outlet. This can easily trap the user's body or hair, or other debris, into the outlet, causing blockages in the water circulation system's outlet components and rendering the water pipes unusable. This not only affects the normal operation of the water circulation system and reduces the user experience, but also poses a safety hazard when the user is inside the pool due to the localized negative pressure zone. Utility Model Content

[0004] The purpose of this invention is to solve the problem of blockage in the water outlet component of a water circulation system. This invention provides a water circulation system in which, when the water outlet component is blocked, the air intake component provides air to the water outlet pipe, disrupting the local negative pressure zone. This facilitates the removal of blockage debris or the removal of any body parts sucked into the negative pressure zone, allowing the water circulation system to quickly return to normal operation, thus improving the user experience and safety.

[0005] To solve the above-mentioned technical problems, an embodiment of this utility model discloses a water circulation system, comprising:

[0006] A water inlet assembly includes a water inlet section and a water inlet pipe, one end of which is connected to the water inlet section. The water inlet section is installed on the inner wall of the water-containing space and is used to supply water to the water-containing space.

[0007] The water outlet assembly includes a water outlet section and an out-of-pool water outlet pipe. One end of the out-of-pool water outlet pipe is connected to the water outlet section. The out-of-pool water outlet pipe is located outside the water-containing space. The water outlet section is located on the inner wall of the water-containing space and is used to drain water from the water-containing space.

[0008] An air intake assembly includes an air intake section and an air intake pipe. One end of the air intake pipe is connected to the pool outlet water pipe, and the other end is connected to the air intake section. The air intake section is used to communicate with the atmosphere.

[0009] Using the above technical solution, when the water-containing space drains through the outlet, the water flows from the water-containing space (large space) to the outlet component (small space), resulting in a faster water flow speed. This causes a decrease in pressure within the outlet water pipe, creating negative pressure and generating suction. This suction can easily draw foreign objects (such as impurities in the pool), hair, or the user's body into the outlet, causing blockage and rendering the outlet water pipe non-conductive, meaning no water flows through it or only a small amount flows. In this embodiment, one end of the air intake component is connected to the outlet water pipe, and the other end is connected to the air intake, which is open to the atmosphere. Air enters the outlet from the outlet water pipe, balancing the pressure in the outlet water pipe with the pressure in the water-containing space. This reduces or eliminates the suction, making it easier to clear blockages or remove the sucked-in body parts, allowing the water circulation system to quickly return to normal operation, improving the user experience and safety.

[0010] Furthermore, compared to placing one end of the air inlet pipe inside the water-containing space, which requires an additional opening in the inner wall of the water-containing space to allow air to pass through the water outlet from within the water-containing space, in this application, the outer water outlet pipe is located outside the water-containing space, and one end of the air inlet component is connected to the outer water outlet pipe. That is, one end of the air inlet component is not located inside the water-containing space, but is connected to the outer water outlet pipe outside the water-containing space. Therefore, there is no need to make an additional opening in the inner wall of the water-containing space, which can increase the service life of the product and reduce the design and production costs of the leak-proof structure for the additional opening.

[0011] According to another specific embodiment of the present invention, a water circulation system is disclosed. The air intake component includes a first fastener, and the water outlet component includes a first connecting pipe. The first connecting pipe is disposed on the outer wall of the pool outlet water pipe and is connected to the pool outlet water pipe. One end of the air intake pipe is sleeved on the first connecting pipe, and the first fastener is sleeved on the air intake pipe to fix the air intake pipe and the first connecting pipe together.

[0012] By adopting the above technical solution, one end of the intake pipe is fitted onto the first connecting pipe, and the first fastener is fitted onto the intake pipe, which can make the connection between the intake pipe and the first connecting pipe more secure.

[0013] According to another specific embodiment of the present invention, a water circulation system is disclosed, wherein the water outlet component includes a second connecting pipe, the second connecting pipe is connected to the first connecting pipe, the second connecting pipe is disposed inside the water outlet pipe outside the pool, and the outlet of the second connecting pipe is disposed facing the water outlet.

[0014] With the above technical solution, the second connecting pipe is located inside the water outlet pipe outside the pool, and the outlet of the second connecting pipe is set towards the water outlet. Therefore, external gas can pass through the air inlet pipe, the first connecting pipe and the second connecting pipe in sequence to directly supply air to the water outlet, so that the pressure on both sides of the water outlet can be quickly restored to a balanced state, thereby improving the efficiency of the water circulation system to quickly return to normal operation.

[0015] According to another specific embodiment of the present invention, the present invention discloses a water circulation system, wherein the water outlet component includes a water stop section, one end of the water stop section is connected to the air inlet pipe, and the other end is connected to the pool outlet water pipe, the water stop section includes a cavity, and the cavity is located below the pool outlet water pipe;

[0016] When the pool outlet water pipe is in the conductive state, the cavity is filled with water, and the air inlet pipe does not supply air to the pool outlet water pipe; when the pool outlet water pipe is in the non-conductive state, the cavity is not filled with water, and the air inlet pipe supplies air to the pool outlet water pipe, so as to switch the pool outlet water pipe to the conductive state.

[0017] Using the above technical solution, since the cavity is located below the pool outlet water pipe, when the pool outlet water pipe is in a conductive state, some water will flow into the cavity. The water remaining in the cavity will block the connecting hole between the air inlet pipe and the cavity, preventing the air inlet pipe from supplying air to the pool outlet water pipe and avoiding affecting the water flow of the water circulation system. When the pool outlet water pipe is not conductive, the cavity is not filled with water, and the air inlet pipe supplies air to the pool outlet water pipe, which can be used to switch the pool outlet water pipe to a conductive state.

[0018] According to another specific embodiment of the present invention, a water circulation system is disclosed, including a water pump. The other end of the inlet pipe is connected to the water pump, and the other end of the outlet water pipe is connected to the water pump. When the outlet water pipe is in the conducting state, the water pump is used to maintain water flow balance. When the outlet water pipe is in the non-conducting state, the water pump is used to empty the cavity so that the cavity is not filled with water.

[0019] Using the above technical solution, when the outflow pipe is in a conductive state, the water pump can be used to extract water from the water storage space through the outflow pipe and inject the treated water into the water storage space through the inflow pipe, so that the water circulation system maintains water flow balance.

[0020] When the water outlet pipe is not open, the water pump will remove the water from the cavity to prevent it from filling with water. At the same time, the connection between the air inlet pipe and the cavity will no longer be blocked, allowing airflow to enter the water outlet pipe. This reduces the negative pressure in the water outlet pipe and avoids the risk of foreign objects (such as impurities in the pool, hair, or the user's body) adhering to the water outlet. The water pump accelerates the process of preventing the cavity from filling with water, thereby further improving the efficiency of quickly restoring the water circulation system to normal operation.

[0021] According to another specific embodiment of the present invention, a water circulation system is disclosed, including a control box, the control box including a accommodating cavity, the water pump being disposed in the accommodating cavity, and the other end of the inlet pipe being connected to the other end of the outlet pipe within the accommodating cavity.

[0022] With the above technical solution, the other end of the water pump, the inlet pipe and the other end of the outlet pipe are all located in the containment cavity of the control box, which enables the part of the water circulation system outside the water-containing space to be designed as an integrated module, providing protection for the part of the water circulation system outside the water-containing space.

[0023] According to another specific embodiment of the present invention, a water circulation system is disclosed. The water outlet component includes a blocking part, and the water outlet pipeline includes a first through hole. The cavity is connected to the water outlet pipeline through the first through hole. The blocking part is disposed on the inner wall of the water outlet pipeline. The blocking part and the first through hole together form the water flow channel. The opening of the water flow channel is disposed facing the water outlet. The projection of the blocking part on the radial side of the water outlet pipeline covers the first through hole.

[0024] Using the above technical solution, the blocking part and the first through hole together form a water flow channel. Since the opening of the water flow channel extends towards the water outlet and the projection of the blocking part on the radial side of the water outlet pipe covers the first through hole, when the water outlet pipe is in a conductive state, the water flow can be intercepted by the blocking part into the cavity. Even if the water flow speed is too fast, the water flow can still enter the cavity efficiently.

[0025] According to another specific embodiment of the present invention, a water circulation system is disclosed. The water outlet component includes a flow limiting part and a sealing ring. The sealing ring is disposed between the outer wall of the water outlet pipe and the other end of the water stop part. The flow limiting part includes a first protrusion and a second through hole. The first protrusion is disposed on the hole wall of the first through hole, and the second through hole is disposed at the opening of the first through hole. The first through hole and the second through hole are connected. The first protrusion, the blocking part, the first through hole and the second through hole together form the water flow channel.

[0026] By adopting the above technical solution, the first protrusion restricts the opening size of the first through hole, so that the first protrusion, the blocking part, the first through hole and the second through hole together form a narrow and winding water flow channel. When the water pipe outside the pool is in the open state, the narrow water flow channel can prevent the water in the cavity from being sucked away by the water pump. Therefore, it can prevent external air from entering when the water pipe outside the pool is in the open state, thereby avoiding affecting the water flow of the water circulation system.

[0027] According to another specific embodiment of the present invention, the present invention discloses a water circulation system, wherein the water inlet includes a first top cover and a first bottom cover, the water outlet includes a second top cover and a second bottom cover, the first top cover and the second top cover are respectively provided with a plurality of water passage holes, and the air inlet includes a third top cover and a third bottom cover, the third top cover being provided with a plurality of air passage holes;

[0028] The first top cover and the first bottom cover are detachably connected. The first bottom cover is connected to one end of the water inlet pipe. The second top cover and the second bottom cover are detachably connected. The second bottom cover is connected to one end of the pool outlet water pipe. The third top cover and the third bottom cover are detachably connected. The third bottom cover is connected to the other end of the air inlet pipe.

[0029] Using the above technical solution, the first top cover and the first bottom cover are detachably connected, the second top cover and the second bottom cover are detachably connected, and the third top cover and the third bottom cover are detachably connected, which facilitates the inspection and installation of the water inlet, water outlet and air inlet.

[0030] This utility model also discloses a water tank, which includes at least the water circulation system described in any of the above embodiments, and...

[0031] bottom wall;

[0032] The inner wall, the bottom wall and the inner wall enclose the water-containing space, the water inlet and the water outlet are spaced apart on the inner wall, and the water outlet pipe is located outside the water-containing space.

[0033] By adopting the above technical solution, since one end of the air inlet pipe is connected to the water outlet pipe outside the water-containing space, compared to setting one end of the air inlet pipe inside the water-containing space, an additional opening is needed in the inner wall of the water-containing space to allow one end of the air inlet pipe to vent air towards the water outlet within the water-containing space. In this application, since the water outlet pipe is located outside the water-containing space and one end of the air inlet component is connected to the water outlet pipe, that is, one end of the air inlet component is not located inside the water-containing space, but is connected to the water outlet pipe outside the water-containing space. Therefore, there is no need to make an additional opening in the inner wall of the water-containing space, which can increase the service life of the product and reduce the design and production costs of the leak-proof structure for the additional opening.

[0034] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a water tank, including an outer wall, the outer wall surrounding the inner wall, the inner wall and the outer wall being spaced apart to form a cavity, one end of the water inlet pipe being disposed in the cavity, one end of the water outlet pipe being disposed in the cavity, and the air inlet pipe being disposed in the cavity.

[0035] Using the above technical solution, the inner wall and outer wall are spaced apart to form a cavity. One end of the water inlet pipe is located in the cavity, one end of the pool outlet water outlet pipe is located in the cavity, and the air inlet pipe is located in the cavity. The cavity provides protection for one end of the water inlet pipe, one end of the pool outlet water outlet pipe, and the air inlet pipe.

[0036] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a water tank, wherein the air inlet, the water outlet, and the water inlet are spaced apart on the inner wall, or...

[0037] The water outlet and the water inlet are spaced apart on the inner wall, and the air inlet is located on the outer wall, or...

[0038] The water outlet and the water inlet are spaced apart on the inner wall, and the air inlet is located between the outer wall and the inner wall.

[0039] By adopting the above technical solution, the air inlet, water outlet, and water outlet can be configured in various ways to meet different needs. Specifically, the air inlet can be located between the outer and inner walls, meaning it is not located on the inner wall, which further reduces the number of openings on the inner wall and thus increases the product's service life. Attached Figure Description

[0040] Figure 1 A three-dimensional schematic diagram of the water tank provided in an embodiment of this application is shown.

[0041] Figure 2 A three-dimensional schematic diagram of the water circulation system provided in an embodiment of this application is shown.

[0042] Figure 3 A cross-sectional view of the air intake section of the water circulation system provided in this application embodiment is shown on the inner wall.

[0043] Figure 4 A cross-sectional view of the air intake of the water circulation system provided in the embodiment of this application is shown on the outer wall.

[0044] Figure 5 A cross-sectional view of the air intake of the water circulation system provided in this application embodiment is shown, located between the outer wall and the inner wall.

[0045] Figure 6 A three-dimensional schematic diagram of the air intake assembly, water intake assembly, and water outlet assembly of the water circulation system provided in the embodiments of this application is shown.

[0046] Figure 6a A color three-dimensional schematic diagram of the air intake assembly, water intake assembly, and water outlet assembly of the water circulation system provided in the embodiments of this application is shown.

[0047] Figure 7 A partial exploded view of the air inlet, water outlet, and water inlet of the water circulation system provided in the embodiments of this application is shown.

[0048] Figure 8 A cross-sectional view of a water circulation system provided in an embodiment of this application, including a first connecting pipe, is shown.

[0049] Figure 8a The image shows a partial enlarged view (AA) of a cross-sectional view of a water circulation system provided in an embodiment of this application, including a first connecting pipe.

[0050] Figure 9 A cross-sectional view of a water circulation system provided in an embodiment of this application, including a second connecting pipe, is shown.

[0051] Figure 10 An exploded view of the water circulation system provided in the embodiments of this application is shown, including the water shut-off section, the pool outlet water pipe, and the air inlet pipe.

[0052] Figure 11 A cross-sectional view of a water circulation system including a water shut-off section is shown in an embodiment of this application.

[0053] Figure 12 This diagram shows a half-sectional perspective view of the water circulation system provided in this application, including the water shut-off section and the external water pipe.

[0054] Figure 12a The water circulation system provided in the embodiments of this application is shown. Figure 12 A magnified view of the area at point BB.

[0055] Figure 13This illustration shows a partial cross-sectional perspective view of the water circulation system provided in this application, including the water shut-off section and the external water pipe.

[0056] Figure 14 An exploded view of the water-stopping section of the water circulation system provided in an embodiment of this application is shown.

[0057] Figure 15 A schematic diagram of the flow restriction section of the water circulation system provided in the embodiment of this application is shown. Detailed Implementation

[0058] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Although the description of this utility model will be presented in conjunction with preferred embodiments, this does not mean that the features of this utility model are limited to this embodiment. On the contrary, the purpose of describing the utility model in conjunction with the embodiments is to cover other options or modifications that may be derived based on the claims of this utility model. To provide a deep understanding of this utility model, many specific details will be included in the following description. This utility model may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this utility model, some specific details will be omitted in the description. It should be noted that, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0059] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0060] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0061] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0062] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0063] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0064] In some embodiments, see Figure 1 This application provides a water tank, including a water circulation system 10, a bottom wall 20, and an inner wall 30. The bottom wall 20 and the inner wall 30 enclose a water-containing space 40, which can be cubical in shape. This application does not limit the shape of the water-containing space 40; for example, it can also be cuboid, cylindrical, etc. The water circulation system 10 is located outside the water-containing space 40 and is connected to the water-containing space 40, used to inject water into the water-containing space 40 or drain water from the water-containing space 40. Exemplarily, the water tank can be a swimming pool, a massage pool, etc., and this application does not limit this.

[0065] For example, see Figure 1 , Figure 2 , Figure 3 The water circulation system 10 includes a control box 11, a water pump 12, a water inlet assembly 13, a water outlet assembly 14, and an air inlet assembly 15. The control box 11 is spaced apart from the water storage space 40. The control box 11 includes a receiving cavity 111, and the water pump 12 is located within the receiving cavity 111. One end of the water pump 12 is connected to the water inlet assembly 13, and the other end is connected to the water outlet assembly 14, used to maintain a balance between the inflow and outflow of water within the water storage space 40. It can be understood that the water circulation system 10 of this embodiment may also include a filter assembly (not shown in the figure) and a heating assembly (not shown in the figure). The filter assembly and the heating assembly can be connected to the water pump to filter, heat, or otherwise process the water extracted from the water storage space 40 before it is introduced back into the water storage space 40.

[0066] In some embodiments, see Figure 1 , Figure 2 , Figure 3The water inlet assembly 13 includes a water inlet section 131 and a water inlet pipe 132. One end of the water inlet pipe 132 is connected to the water inlet section 131 for supplying water to the water-containing space 40. The water outlet assembly 14 includes a water outlet section 141 and an external water outlet pipe 142. The external water outlet pipe 142 is located outside the water-containing space 40, and one end of the external water outlet pipe 142 is connected to the water outlet section 141 for draining water from the water-containing space 40. The air inlet assembly 15 includes an air inlet section 151 and an air inlet pipe 152. Located outside the water-containing space 40, one end of the air inlet pipe 152 is connected to the external water outlet pipe 142, and the other end is connected to the air inlet section 151. The air inlet section 151 is used to communicate with the atmosphere.

[0067] For example, in some embodiments, the other end of the inlet pipe 132 is connected to the water pump 12 in the accommodating cavity 111, and the other end of the outlet pipe 142 is connected to the water pump 12. When the outlet pipe 142 is in the conducting state, the water pump 12 can be used to draw water out of the water storage space 40 through the outlet pipe 142 and inject the treated water into the water storage space 40 through the inlet pipe 132, so that the water circulation system maintains water flow balance.

[0068] In some embodiments, see Figure 3 , Figure 4 , Figure 5 The pool includes an outer wall 50 surrounding an inner wall 30. The inner wall 30 and outer wall 50 are spaced apart to form a cavity 51. One end of a water inlet pipe 132, one end of an outlet water pipe 142, and an air inlet pipe 152 are all located within the cavity 51. The cavity 51 provides protection for one end of the water inlet pipe 132, one end of the outlet water pipe 142, and the air inlet pipe 152. Exemplarily, the pool also includes a top wall 60 covering the cavity 51. One end of the top wall 60 is connected to the inner wall 30, and the other end is connected to the outer wall 50. The top wall 60, inner wall 30, outer wall 50, and bottom wall 20 together enclose the cavity 51.

[0069] In some embodiments, such as Figure 3 As shown, the air inlet 151, water outlet 141, and water inlet 131 are spaced apart on the inner wall 30. Three through holes need to be opened on the inner wall 30. Air flows from the water-containing space 40 along the air inlet 151 and air inlet pipe 152 into the water outlet pipe 142, forming... Figure 3 The airflow path c in the middle.

[0070] This application embodiment does not limit the position of the air intake 151. For example, as shown in the example... Figure 4As shown, the water outlet 141 and the water inlet 131 are spaced apart on the inner wall 30, and the air inlet 151 is located on the outer wall 50. In this case, only two through holes need to be opened on the inner wall 30, allowing air to directly enter the outer water outlet pipe 142 from outside the water-containing space 40 via the air inlet 151 and the air inlet pipe 152, forming... Figure 3 The airflow path c in the middle.

[0071] For example, such as Figure 5 As shown, the water outlet 141 and the water inlet 131 are spaced apart on the inner wall 30, and the air inlet 151 is located between the outer wall 50 and the inner wall 30. Air is introduced from the cavity 51 along the air inlet 151 and the air inlet pipe 152 into the pool outlet water pipe 142, forming... Figure 3 In the airflow path c, the top wall 60 is connected to the outside atmosphere, allowing air to enter the air intake 151. Furthermore, only two through holes are needed on the inner wall 30, further reducing the number of openings on the inner wall 30 and thus increasing the product's lifespan. Understandably, in Figure 3 , Figure 4 , Figure 5 In the middle, the water inlet 131 supplies water to the water-containing space 40 along the water inlet path a, and the water outlet 141 discharges the water from the water-containing space 40 along the water outlet path b.

[0072] Using the above technical solution, when the water-containing space 40 drains water through the outlet 141, the water flows from the water-containing space 40 (large space) to the pool outlet water pipe 142 (small space), resulting in a faster water flow speed. This causes a decrease in pressure within the pool outlet water pipe 142, creating negative pressure and generating suction. This suction easily draws foreign objects (such as impurities in the pool, hair, or the user's body) into the outlet 141, causing blockage and rendering the pool outlet water pipe 142 non-conductive, meaning no water flows through it. Or, if only a small amount of water passes through, in this embodiment, one end of the air intake component 15 is connected to the pool outlet water pipe 142, and the other end is connected to the air intake section 151, and the air intake section 151 is connected to the atmosphere. Air enters the water outlet section 141 from the pool outlet water pipe 142, so that the pressure in the pool outlet water pipe 142 and the pressure in the water storage space 40 are balanced, so that the suction is reduced or disappears, making it easier to clean up blockages or move the part of the body that has been sucked in, so that the water circulation system 10 can quickly return to normal operation, improving the user experience and safety.

[0073] Understandably, the conductive state in the embodiments of this application can be understood as a state in which a large amount of water flows through the pipe, and the non-conductive state can be understood as a state in which no water flows through the pipe or almost no water flows through the pipe. Furthermore, in some embodiments, one end of the air intake pipe 152 is located on the inner wall 30 of the water-containing space 40, for extending one end of the air intake pipe 152 into the water-containing space 40. In this case, an additional opening is required on the inner wall 30 of the water-containing space 40, which reduces the product's service life and requires a leak-proof structure for the additional opening, increasing the product's cost.

[0074] In contrast, in this embodiment, since the external water pipe 142 is located outside the water-containing space 40, and one end of the air intake component 15 is connected to the external water pipe 142, that is, one end of the air intake component 15 is not located inside the water-containing space 40. Therefore, there is no need to make an additional opening on the inner wall 30 of the water-containing space 40, which can increase the service life of the product and reduce the design and production cost of the anti-leakage structure for the additional opening.

[0075] For ease of understanding, the following example uses an air inlet 151, a water outlet 141, and a water inlet 131 spaced apart on the inner wall 30 of the water-containing space 40, in conjunction with the attached diagram. Figure 6 To be continued Figure 15 This further explains the specific structure of the air inlet 151, the water outlet 141, and the water inlet 131, as well as the connection method between one end of the air inlet pipe 152 and the water outlet pipe 142 outside the pool.

[0076] In some embodiments, see Figure 6a , Figure 7 , Figure 8 The water inlet 131 includes a first top cover 1311 and a first bottom cover 1312. The water outlet 141 includes a second top cover 1411 and a second bottom cover 1412. The first top cover 1311 is provided with a plurality of first water passage holes 1313, through which water flows into the water holding space 40. The second top cover 1411 is provided with a plurality of second water passage holes 1414, through which water flows out of the water holding space 40. The air inlet 151 includes a third top cover 1511 and a third bottom cover 1512. The third top cover 1511 is provided with a plurality of air passage holes 1513, through which air flows into the air inlet pipe 152.

[0077] In some embodiments, see Figure 6a , Figure 7 , Figure 8The first top cover 1311 and the first bottom cover 1312 are detachably connected. The first bottom cover 1312 is connected to one end of the water inlet pipe 132. The second top cover 1411 and the second bottom cover 1412 are detachably connected. The second bottom cover 1412 is connected to one end of the water outlet pipe. The third top cover 1511 and the third bottom cover 1512 are detachably connected. The third bottom cover 1512 is connected to the other end of the air inlet pipe 152. Exemplarily, the detachable connection in this embodiment can be understood as including but not limited to detachable connections achieved by screws, bolts, or clips. Exemplarily, the third bottom cover 1512 is provided with multiple first snap-fit ​​protrusions 15121, and the third top cover 1511 is provided with multiple second snap-fit ​​protrusions (not shown in the figure). Each first snap-fit ​​protrusion 15121 and each second snap-fit ​​protrusion are arranged in pairs and snap-fit ​​each other.

[0078] In some embodiments, see Figure 6a , Figure 7 , Figure 8 The first top cover 1311, the second top cover 1411, and the third top cover 1511 are all disposed within the water-containing space 40. The first top cover 1311 and the second top cover 1411 are in direct contact with the water flow within the water-containing space 40, while the third top cover 1511 is disposed above the water flow within the water-containing space 40 and is not in contact with the water flow. For example, the first bottom cover 1312 is threaded to one end of the water inlet pipe 132, and the second bottom cover 1412 is threaded to one end of the water outlet pipe, further increasing the tightness of the connection between the water inlet pipe 132 and the water inlet section 131, as well as the tightness of the connection between the water outlet pipe and the water outlet section 141.

[0079] In some embodiments, see Figure 8 , Figure 8a The air intake assembly 15 includes a first fastener 153, and the water outlet assembly 14 includes a first connecting pipe 143. The first connecting pipe 143 is disposed on the outer wall 1421 of the pool outlet water outlet pipe and is connected to the pool outlet water outlet pipe 142. One end of the air intake pipe 152 is sleeved on the first connecting pipe 143, and the first fastener 153 is sleeved on the air intake pipe 152 to fix the air intake pipe 152 and the first connecting pipe 143. For example, the first fastener 153 includes a first part 1531 and a second part 1532. Both the first part 1531 and the second part 1532 are provided with threaded holes 154. The first part 1531 and the second part 1532 are detachably connected by a connector (e.g., a screw). Both the first part 1531 and the second part 1532 include a groove. When the first part 1531 and the second part 1532 are connected, the groove wall 155 can completely fit and squeeze the outer wall 1521 of the air intake pipe, so that the air intake pipe 152 and the first connecting pipe 143 are tightly connected.

[0080] Understandably, the embodiments of this application do not limit the number and position of the first fasteners 153. For example, the air intake 151 includes a connecting part, one end of which is connected to the third bottom cover 1512, and the other end of the air intake pipe 152 is sleeved on the other end of the connecting part. The first fasteners 153 are also sleeved around the other end of the air intake pipe 152. Furthermore, the embodiments of this application can provide the first fasteners 153 at the locations where two pipes are connected.

[0081] In some embodiments, see Figure 8 , Figure 8a , Figure 9 The water outlet assembly 14 includes a second connecting pipe 144, which communicates with the first connecting pipe 143. The second connecting pipe 144 is located inside the pool outlet water outlet pipe 142, and its outlet 1441 faces the water outlet portion 141. For example, the outlet 1441 of the second connecting pipe is spaced apart from the water outlet portion 141, allowing air to be directly introduced into the water inlet of the second top cover 1411. For example, the outlet 1441 of the second connecting pipe 144 is spaced 5mm to 10mm from the water outlet 141. It is understood that this embodiment does not limit the position of the outlet 1441 of the second connecting pipe 144. For example, the distance between the outlet 1441 and the water outlet 141 can be 2mm, 3.5mm, 12mm, 15mm, 20.4mm, etc., or the outlet 1441 of the second connecting pipe 144 can also abut against the water outlet 141. For example, the first connecting pipe 143 and the second connecting pipe 144 intersect, and the first connecting pipe 143 and the second connecting pipe 144 form an "L" shape. It is understood that this embodiment does not limit the angle at which the first connecting pipe 143 and the second connecting pipe 144 intersect. For example, it can be 60°, 71°, 88°, 90°, 90.5°, 100°, etc.

[0082] In some embodiments, see Figure 10 , Figure 11 , Figure 12 and combined Figure 2The water outlet assembly 14 includes a water shut-off section 145, one end of which is connected to the air inlet pipe 152, and the other end is connected to the pool outlet water outlet pipe 142. The water shut-off section 145 includes a cavity 1451, which is located below the pool outlet water outlet pipe 142. Since the cavity 1451 is located below the pool outlet water outlet pipe 142, when the pool outlet water outlet pipe 142 is in a conductive state, some water will flow into the cavity 1451. The water remaining in the cavity 1451 will block the connecting hole 1522 between the air inlet pipe 152 and the cavity 1451, preventing the air inlet pipe 152 from supplying air to the pool outlet water outlet pipe 142, thus avoiding affecting the water flow rate of the water circulation system 10. When the pool outlet water pipe 142 is in a non-conductive state, the cavity 1451 is not filled with water, and the air inlet pipe 152 vents air to the pool outlet water pipe 142, which can be used to switch the pool outlet water pipe 142 to a conductive state.

[0083] For example, see Figure 10 , Figure 11 , Figure 12 A water-stopping section 145 is located at one end of the pool outlet water pipe 142 near the water outlet section 141. The water-stopping section 145 includes a first pipe 1452 and a second pipe 1453 that are connected to each other. The first pipe 1452 and the second pipe 1453 intersect. One end of an air inlet pipe 152 is fitted onto the first pipe 1452. A first fastener 153 is fitted onto the air inlet pipe 152. A cavity 1451 is located on the second pipe 1453. For example, the pool outlet water pipe 142 includes a first through hole 1422. The cavity 1451 is connected to the pool outlet water pipe 142 through the first through hole 1422. The end of the second pipe 1453 abuts against the outer wall 1421 of the pool outlet water pipe 142.

[0084] When the outflow water pipe 142 is in the conductive state, the cavity 1451 is filled with water, and the air inlet pipe 152 does not supply air to the outflow water pipe 142; when the outflow water pipe 142 is in the non-conductive state, the cavity 1451 is not filled with water, and the air inlet pipe 152 supplies air to the outflow water pipe 142, thereby switching the outflow water pipe 142 to the conductive state. Using the above technical solution, when the outflow water pipe 142 is in the conductive state, the water pump 12 can extract water from the water-containing space 40 through the outlet pipe and inject treated water into the water-containing space 40 through the inlet pipe 132, maintaining the water flow balance of the water circulation system 10.

[0085] When the pool outlet water pipe 142 is not in a closed state, the water pump 12 will pump out the water in the cavity 1451 so that the cavity 1451 is not filled with water. At the same time, the connecting hole 1522 between the air inlet pipe 152 and the cavity 1451 is no longer blocked, and the airflow can enter the pool outlet water pipe 142, reducing the negative pressure of the pool outlet water pipe 142 and avoiding the risk of foreign objects (such as impurities in the pool), hair or the user's body adhering to the water outlet 141. Through the action of the water pump 12, the process of the cavity 1451 being defilled with water can be accelerated, thereby further improving the efficiency of quickly restoring the water circulation system to normal operation.

[0086] In some embodiments, see Figure 11 , Figure 12 , Figure 13 and combined Figure 2 The water outlet assembly 14 includes a blocking part 146, which is disposed on the inner wall 1423 of the pool outlet water pipe 142. The blocking part 146 and the first through hole 1422 together form a water flow channel 1461. The opening of the water flow channel 1461 is disposed facing the water outlet 141, and the projection of the blocking part 146 on the radial Y direction of the pool outlet water pipe 142 covers the first through hole 1422. Since the opening of the water flow channel 1461 extends towards the water outlet 141, and the projection of the blocking part 146 on the radial Y direction of the pool outlet water pipe 142 covers the first through hole 1422, when the pool outlet water pipe 142 is in a conductive state, the water flow can be intercepted by the blocking part 146 into the cavity 1451. Even when the water flow velocity is too fast, the water flow can still efficiently enter the cavity 1451.

[0087] For example, the blocking portion 146 is plate-shaped (e.g. Figure 11 As shown), at this time, one end of the blocking part 146 is provided on the inner wall 1423 of the pool outlet water pipe 142, and the other end extends toward the water outlet 141 and is spaced apart from the first through hole 1422. This application embodiment does not limit the specific form of the blocking part 146. For example, the blocking part 146 can be a hollow block (such as...). Figure 12 , Figure 12a , Figure 13 As shown), at this time, the blocking part 146 includes a top 1462 and a side 1463. The top 1462 is spaced apart from the first through hole 1422, and its projection on the radial Y of the pool outlet water pipe 142 covers the first through hole 1422. One end of the side 1463 is connected to the top 1462, and the other end is connected to the inner wall 1423 of the pool outlet water pipe 142.

[0088] In some embodiments, see Figure 12 , Figure 12a , Figure 13The water-stopping section 145 includes a flow-limiting section 1454 and a sealing ring 1455. The sealing ring 1455 is located between the outer wall 1421 of the pool outlet water pipe 142 and the second pipe 1453 of the water-stopping section 145. The flow-limiting section 1454 includes a first protrusion 14541 and a second through hole 14542. The first protrusion 14541 is located on the hole wall 14221 of the first through hole 1422, and the second through hole 14542 is located at the opening of the first through hole 1422. The first through hole 1422 and the second through hole 14542 are connected. The first protrusion 14541, the blocking section 146, the first through hole 1422 and the second through hole 14542 together form a water flow channel 1461. It is understood that the location of the second through hole 14542 is not limited in the embodiments of this application. For example, the second through hole 14542 may be located below the first through hole 1422, or the second through hole 14542 may be located inside the first through hole 1422.

[0089] In some embodiments, see Figure 13 , Figure 14 , Figure 15 The flow-limiting part 1454 includes a pressure plate 14543, and a first protrusion 14541 protrudes from the pressure plate 14543. The upper surface of the first protrusion 14541 is flush with the inner wall 1423 of the pool outlet water pipe 142 (e.g., Figure 12a As shown, a second through hole 14542 is provided on the pressure plate 14543, and the second through hole 14542 is spaced apart from the first protrusion 14541. Exemplarily, the pressure plate 14543 is also provided with at least two connection holes 14544 for detachable connection with the outer wall 1421 of the pool outlet water pipe 142 via connectors (e.g., screws).

[0090] In some embodiments, see Figure 13 , Figure 14 , Figure 15 Along the radial direction Y, the pressure plate 14543 has a second protrusion 14545 on the side opposite to the first protrusion 14541, and the second pipeline 1453 has at least two first recesses 14531 at the opening facing the flow limiting part 1454. Each second protrusion 14545 is correspondingly provided in the first recess 14531, which is used to make the connection between the pressure plate 14543 and the second pipeline 1453 more secure.

[0091] After the first protrusion 14541 occupies part of the space of the first through hole 1422, it limits the first through hole 1422 to only connect the cavity 1451 and the pool outlet water pipe 142 through the part corresponding to the second through hole 14542. This restricts the opening size of the first through hole 1422, so that the first protrusion 14541, the blocking part 146, the first through hole 1422 and the second through hole 14542 together form a tortuous and narrow water flow channel 1461. When the pool outlet water pipe 142 is in the conducting state, the narrow water flow channel 1461 can prevent the water in the cavity 1451 from being quickly sucked away by the water pump. Therefore, it can prevent external air from entering when the pool outlet water pipe 142 is in the conducting state, thereby avoiding affecting the water flow of the water circulation system.

[0092] Although the present invention has been illustrated and described with reference to certain preferred embodiments, those skilled in the art should understand that the above description is a further detailed explanation of the present invention in conjunction with specific embodiments, and should not be construed as limiting the specific implementation of the present invention to these descriptions. Those skilled in the art can make various changes in form and detail, including some simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A water circulation system, characterized in that, include: A water inlet assembly includes a water inlet section and a water inlet pipe, one end of which is connected to the water inlet section. The water inlet section is installed on the inner wall of the water-containing space and is used to supply water to the water-containing space. The water outlet assembly includes a water outlet section and an out-of-pool water outlet pipe. One end of the out-of-pool water outlet pipe is connected to the water outlet section. The out-of-pool water outlet pipe is located outside the water-containing space. The water outlet section is located on the inner wall of the water-containing space and is used to drain water from the water-containing space. An air intake assembly includes an air intake section and an air intake pipe. One end of the air intake pipe is connected to the pool outlet water pipe, and the other end is connected to the air intake section. The air intake section is used to communicate with the atmosphere.

2. The water circulation system as described in claim 1, characterized in that, The air intake assembly includes a first fastener, and the water outlet assembly includes a first connecting pipe. The first connecting pipe is disposed on the outer wall of the pool outlet water outlet pipe and is connected to the pool outlet water outlet pipe. One end of the air intake pipe is sleeved on the first connecting pipe, and the first fastener is sleeved on the air intake pipe to fix the air intake pipe and the first connecting pipe together.

3. The water circulation system as described in claim 2, characterized in that, The water outlet assembly includes a second connecting pipe, which is connected to the first connecting pipe. The second connecting pipe is located inside the water outlet pipe outside the pool, and the outlet of the second connecting pipe faces the water outlet.

4. The water circulation system as described in claim 1, characterized in that, The water outlet assembly includes a water shut-off section, one end of which is connected to the air inlet pipe and the other end of which is connected to the pool outlet water pipe. The water shut-off section includes a cavity located below the pool outlet water pipe. When the pool outlet water pipe is in the conductive state, the cavity is filled with water, and the air inlet pipe does not supply air to the pool outlet water pipe; when the pool outlet water pipe is in the non-conductive state, the cavity is not filled with water, and the air inlet pipe supplies air to the pool outlet water pipe, so as to switch the pool outlet water pipe to the conductive state.

5. The water circulation system as described in claim 4, characterized in that, Includes a water pump, with one end of the inlet pipe connected to the water pump and the other end of the outlet water pipe connected to the water pump. When the outlet water pipe is in the conducting state, the water pump is used to maintain water flow balance. When the outlet water pipe is in the non-conducting state, the water pump is used to empty the cavity so that the cavity is not filled with water.

6. The water circulation system as described in claim 5, characterized in that, The system includes a control box, which includes a accommodating cavity. The water pump is located within the accommodating cavity, and the other end of the inlet pipe is connected to the other end of the outlet pipe within the accommodating cavity.

7. The water circulation system as described in claim 5, characterized in that, The water outlet assembly includes a blocking part and a water flow channel. The water outlet pipeline includes a first through hole. The cavity is connected to the water outlet pipeline through the first through hole. The blocking part is disposed on the inner wall of the water outlet pipeline. The blocking part and the first through hole together form the water flow channel. The opening of the water flow channel is disposed facing the water outlet. The projection of the blocking part on the radial side of the water outlet pipeline covers the first through hole.

8. The water circulation system as described in claim 7, characterized in that, The water outlet assembly includes a flow restrictor and a sealing ring. The sealing ring is located between the outer wall of the water outlet pipe and the other end of the water stop section. The flow restrictor includes a first protrusion and a second through hole. The first protrusion is located on the wall of the first through hole, and the second through hole is located at the opening of the first through hole. The first through hole and the second through hole are connected. The first protrusion, the blocking part, the first through hole and the second through hole together form the water flow channel.

9. The water circulation system as described in claim 1, characterized in that, The water inlet includes a first top cover and a first bottom cover, the water outlet includes a second top cover and a second bottom cover, and the first top cover and the second bottom cover are respectively provided with a plurality of water passage holes, and the air inlet includes a third top cover and a third bottom cover, and the third top cover is provided with a plurality of air passage holes; The first top cover and the first bottom cover are detachably connected. The first bottom cover is connected to one end of the water inlet pipe. The second top cover and the second bottom cover are detachably connected. The second bottom cover is connected to one end of the pool outlet water pipe. The third top cover and the third bottom cover are detachably connected. The third bottom cover is connected to the other end of the air inlet pipe.

10. A water tank, characterized in that, include: The water circulation system as described in any one of claims 1-9; bottom wall; The inner wall, the bottom wall and the inner wall enclose the water-containing space, the water inlet and the water outlet are spaced apart on the inner wall, and the water outlet pipe is located outside the water-containing space.

11. The water tank as described in claim 10, characterized in that, It includes an outer wall, which surrounds the inner wall, and the inner wall and the outer wall are spaced apart to form a cavity. One end of the water inlet pipe is located in the cavity, one end of the pool outlet water pipe is located in the cavity, and the air inlet pipe is located in the cavity.

12. The water tank as described in claim 11, characterized in that, The air inlet, the water outlet, and the water inlet are spaced apart on the inner wall, or... The water outlet and the water inlet are spaced apart on the inner wall, and the air inlet is located on the outer wall, or... The water outlet and the water inlet are spaced apart on the inner wall, and the air inlet is located between the outer wall and the inner wall.

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