Patent Description:
In the current urban life, due to the fast pace of life and great work pressure, more leisure ways are needed to increase the joy of life. Compared with the traditional pool, the massage pool has massage and leisure functions so as to make people relax and enjoy life while bathing, thus being widely welcomed by people. The traditional massage pool generally includes two air supply pipelines, one is an inflating pipeline for inflating the pool of the pool, and the other one is a bubble spraying pipeline for spraying bubbles during bathing.

In the traditional massage pool, the inflating pipeline and the bubble spraying pipeline are mutually independent and need to be supplied with air by the air pump respectively. After the air in the pool is saturated, it is necessary to disassemble the air pump and reconnect with the pool to spray bubbles. That is, in the existing art, it is impossible to inflate the pool and spray bubbles to the pool at the same time, thus wasting time and labor in actual operation.

Document <CIT> discloses a device according to the preamble of claim <NUM>. Other examples of valves are known from documents <CIT> or <CIT>.

The present invention provides a one-way valve according to claim <NUM>.

The problem to be solved by the present disclosure is that it is impossible to inflate the pool and spray bubbles to the pool at the same time, thus wasting time and labor in actual operation.

To solve the above problem, an objective of the present disclosure is to provide a one-way valve. The one-way valve includes: a valve body having an inner cavity; a first pipeline arranged on the valve body, wherein, one end of the first pipeline communicates with the inner cavity and the other end of the first pipeline is configured to be connected to an air pump; a second pipeline arranged on the valve body, wherein, one end of the second pipeline communicates with the inner cavity and the other end of the second pipeline is configured to be connected to a spray bubble interface of a pool; and a third pipeline arranged on the valve body, wherein, one end of the third pipeline communicates with the inner cavity and the other end of the third pipeline is configured to be connected to an inflating interface of the pool; wherein when the air pump is in an activated state, the second pipeline is able to be in a communicating state and supplies air to the spray bubble interface, and the third pipeline is able to be in a communicating state and supplies air to the inflating interface.

A sealing member is arranged in the second pipeline, and the first sealing member is able to make the second pipeline conducted under the action of air pressure and seal the second pipeline after pressure relief.

Optionally, a lid is arranged at one end, configured to be connected to the inflating interface, of the third pipeline, and the lid is separatable from the third pipeline to make the third pipeline conducted.

The one-way valve further includes a fourth pipeline arranged on the valve body, wherein a second sealing member is arranged in the valve body, and the second sealing member is able to seal the fourth pipeline under the action of air pressure and make the fourth pipeline conducted after pressure relief.

Optionally, along an extending direction of the valve body, the first pipeline and the fourth pipeline are arranged at two ends of the valve body respectively, and the second pipeline and the third pipeline are arranged on an outer circumferential surface of the valve body respectively at intervals.

Optionally, the first sealing member includes: a first valve head and a first elastic member, wherein one end of the first elastic member abuts against the second pipeline and the other end of the first elastic member abuts against the first valve head; the first valve head is attached to a communicating position of the second pipeline and the inner cavity; and the first valve head is separatable from the communicating position under the action of air pressure to make the second pipeline conducted and be attached to the communicating position after pressure relief to seal the second pipeline.

Optionally, the first sealing member further includes: a first valve core, wherein the first valve head is arranged on the first valve core, and the other end of the first elastic member abuts against the first valve core or the first valve head.

Optionally, there are at least two first sealing members which are arranged along an extending direction of the second pipeline at intervals.

Optionally, the first elastic member sleeves the first valve core.

Optionally, a first axial extension portion is arranged in the second pipeline, the first valve core is inserted in the first axial extension portion, and one end of the first elastic member abuts against the first axial extension portion.

Optionally, the first valve head is spherical.

Optionally, the second pipeline is vertical to the valve body.

Optionally, the second sealing member includes: a sealing sheet and a second elastic member, wherein one end of the second elastic member abuts against the sealing sheet and the other end of the second elastic member abuts against the fourth pipeline; and the sealing sheet is able to be attached to a communicating position of the fourth pipeline and the inner cavity under the action of air pressure to seal the fourth pipeline and be separated from the communicating position after pressure relief to make the fourth pipeline conducted.

Optionally, the sealing sheet is arranged on the second valve core, and the second valve core is inserted on the fourth pipeline.

Optionally, the sealing sheet sleeves the second valve core.

Optionally, one end of the second elastic member abuts against the second valve core.

Optionally, a second axial extension portion is arranged on the fourth pipeline, the second valve core is inserted in the second axial extension portion, and the movement of the second valve core away from the second axial extension portion along an axial direction is limited after pressure relief.

Optionally, the one-way valve further includes a bolt, wherein the bolt is inserted in the second valve core; and the bolt is able to abut against one end, away from the sealing sheet, of the second axial extension portion along the axial direction.

Optionally, there is a radial interval between the sealing sheet and the valve body along a radial direction, and the radial interval communicates with the fourth pipeline after pressure relief.

Optionally, the third pipeline is vertical to the valve body.

Optionally, the third pipeline is closer to the fourth pipeline than the second pipeline.

Optionally, there is an axial interval between the sealing sheet and the fourth pipeline after pressure relief, and the third pipeline is able to communicate with the radial interval through the axial interval.

Optionally, a lid is arranged at one end, configured to be connected to the bubble spraying interface, of the second pipeline, and the lid is separatable from the second pipeline to make the second pipeline conducted.

The present disclosure further provides an air supply system for a massage pool. The air supply system for the massage pool includes: a pool having a bubble spraying interface; the one-way valve as defined in any one of the above, wherein the second pipeline is connected to the bubble spraying interface; and an air pump connected to the first pipeline.

The present disclosure further provides an air supply system for a massage pool. The air supply system for the massage pool includes: a pool having an inflating interface; the one-way valve as defined in any one of the above, wherein the third pipeline is connected to the inflating interface; and an air pump connected to the first pipeline.

The present disclosure further provides an air supply system for a massage pool. The air supply system for the massage pool includes: a pool having a bubble spraying interface and an inflating interface; the one-way valve as defined in any one of the above, wherein the second pipeline is connected to the bubble spraying interface, and the third pipeline being connected to the inflating interface; and an air pump connected to the first pipeline.

As above, the present disclosure provides a one-way valve. The one-way valve includes: a valve body, wherein the valve body has an inner cavity, and a first pipeline, a second pipeline and a third pipeline are arranged on the valve body. One end of the first pipeline communicates with the inner cavity and the other end of the first pipeline is configured to be connected to an air pump; one end of the second pipeline communicates with the inner cavity and the other end of the second pipeline is configured to be connected to a bubble spraying interface of a pool; and one end of the third pipeline communicates with the inner cavity and the other end of the third pipeline is configured to be connected to an inflating interface of the pool. When the air pump is in an activated state, the second pipeline is able to be in a communicating state and supply air to the spray bubble interface, and the third pipeline is able to be in a communicating state and supply air to the inflating interface. The pool is inflated and bubbles are sprayed to the pool at the same time, so that the one-way valve according to the present disclosure may achieve two functions of inflating and spraying bubbles at the same time through one air pump.

To make the above content of the present disclosure more obvious and understandable, the following will describe in detail by giving preferred embodiments and with reference to the accompanying drawings.

The implementation manner of the present disclosure is described below by the specific embodiments. Those skilled in the art may easily understand other advantages and effects of the present disclosure by the contents disclosed by the specification. Although the description of the present disclosure will be introduced together with preferred embodiments, it does not mean that the features of the present disclosure are not limited to the implementation manner. On the contrary, the objective of introducing the present disclosure with reference to the implementation manner is to cover other options or modifications that may be extended based on the claims of the present disclosure. To provide a deep understanding of the present disclosure, many specified details will be included in the following description. The present disclosure may also be implemented without using these details. In addition, to avoid confusion or obscuring of the focus of the present disclosure, some specific details will be omitted in the description. It should be noted that the embodiments in the present disclosure and features in the embodiments may be combined with each other in a nonconflicting situation.

Referring to <FIG> and <FIG>, the embodiment of the present disclosure provides a one-way valve <NUM>. The one-way valve <NUM> includes: a valve body <NUM>, wherein the valve body <NUM> has an inner cavity <NUM>, and a first pipeline <NUM>, a second pipeline <NUM> and a third pipeline <NUM> are arranged on the valve body <NUM>. Along an extending direction of the first pipeline <NUM>, one end of the first pipeline <NUM> communicates with the inner cavity <NUM> and the other end of the first pipeline <NUM> is configured to be connected to an air pump (not shown in the figure); along an extending direction of the second pipeline <NUM>, one end of the second pipeline <NUM> communicates with the inner cavity <NUM> and the other end of the second pipeline <NUM> is configured to be connected to a bubble spraying interface (not shown in the figure) of a pool (not shown in the figure); and along an extending direction of the third pipeline <NUM>, one end of the third pipeline communicates with the inner cavity <NUM> and the other end of the third pipeline <NUM> is configured to be connected to an inflating interface (not shown in the figure) of the pool.

When the air pump is in an activated state, the inner cavity <NUM> of the valve body <NUM> will generates air pressure. Under the action of the air pressure, the second pipeline <NUM> is able to be in a communicating state and supply air to the bubble spraying interface, the third pipeline <NUM> is in a closed state, and bubbles are sprayed to the pool through the second pipeline <NUM>. Or when the air pump is in an activated state, the second pipeline <NUM> is able to be in a communicating state and supply air to the bubble spraying interface, and the third pipeline <NUM> is able to be in a communicating state and supply air to the inflating interface, so that bubbles are sprayed to the pool through the second pipeline <NUM> and the pool is inflated through the third pipeline <NUM>. Or when the air pump is in an activated state, the inner cavity <NUM> of the valve body <NUM> will generates air pressure. Under the action of the air pressure, the third pipeline <NUM> is able to be in a communicating state and supply air to the inflating interface, so that bubbles are sprayed to the pool through the second pipeline <NUM> and the pool is inflated through the third pipeline <NUM>; and the second pipeline <NUM> is in a closed state. Therefore, by the one-way valve <NUM> according to the present disclosure, the functions of inflating and spraying bubbles may be achieved at the same time through one air pump.

When the air pump is in a closed state, the inner cavity <NUM> of the valve body <NUM> relieves pressure, the second pipeline <NUM> does not supply air to the bubble spraying interface and the third pipeline <NUM> does not supply air to the inflating interface.

In the embodiment, a lid (not shown in the figure) is arranged at one end, configured to be connected to the bubble spraying interface, of the second pipeline <NUM>, and the lid is separatable from the second pipeline <NUM> to make the second pipeline <NUM> conducted. After the lid is unscrewed, the lid is separated from the second pipeline <NUM> and the second pipe <NUM> is conducted under the action of air pressure. In other embodiments, one end, configured to be connected to the bubble spraying interface, of the second pipeline is not provided with a lid.

Referring to <FIG>, in this embodiment, a first sealing member is arranged in the second pipeline <NUM>. After the lid is unscrewed and when the air pump is in an activated state, the first sealing member is able to make the second pipeline <NUM> in the inner cavity <NUM> of the valve body <NUM> conducted under the action of air pressure; and when the air pump is in a closed state, the inner cavity <NUM> of the valve body <NUM> relieves pressure, and the first sealing member seal the second pipeline <NUM> after pressure relief.

The first sealing member includes: a first valve head <NUM> and a first elastic member <NUM>, wherein along an extending direction of the second pipeline <NUM> (shown in a Y direction in <FIG>), one end of the first elastic member <NUM> abuts against the second pipeline <NUM> and the other end of the first elastic member <NUM> abuts against the first valve head <NUM>; the first valve head <NUM> is attached to a communicating position of the second pipeline <NUM> and the inner cavity <NUM>; and the first valve head <NUM> is separatable from the communicating position of the second pipeline <NUM> and the inner cavity <NUM> under the action of air pressure to make the second pipeline <NUM> conducted and be attached to the communicating position of the second pipeline <NUM> and the inner cavity <NUM> after pressure relief to seal the second pipeline <NUM>. In this embodiment, the first elastic member <NUM> is a spring. In other embodiments, there may be other types of elastic members capable of applying an elastic force to the first valve head.

In this embodiment, the first sealing member further includes: a first valve core <NUM>, wherein the first valve head <NUM> is arranged on the first valve core <NUM>, and the other end of the first elastic member <NUM> abuts against the first valve core <NUM> or the first valve head <NUM>. In this embodiment, the first elastic member <NUM> sleeves the first valve core <NUM>. In combination with the first valve core <NUM> and the first elastic member <NUM>, the movement stability of the first valve head <NUM> in the extending direction is improved, so that the first valve head <NUM> is attached to or separated from the communicating position of the second pipeline <NUM> and the inner cavity <NUM>. Equivalently, the first valve core <NUM> may play a guiding role. In other embodiments, the first elastic member may not sleeve the first valve core.

Further, in this embodiment, a first axial extension portion <NUM> is arranged in the second pipeline <NUM>, the first valve core <NUM> is inserted in the first axial extension portion <NUM>, and one end of the first elastic member <NUM> sleeves the first axial extension portion <NUM> and abuts against the first axial extension portion <NUM>. The first valve core <NUM> is able to move along the extending direction of the second pipeline <NUM> relative to the first axial extension portion <NUM>. Equivalently, the first axial extension portion <NUM> may play a guiding role.

Specifically, when the air pump is in an activated state, under the action of the air pressure in the inner cavity <NUM> of the valve body <NUM>, the first elastic member <NUM> of the first sealing member is compressed, the first valve head <NUM> is separated from the communicating position of the second pipeline <NUM> and the inner cavity <NUM>, the first valve head <NUM> is pushed open, the first valve core <NUM> moves along the extending direction of the second pipeline <NUM> relative to the first axial extension portion <NUM>, the first valve head <NUM> moves along a direction (shown in a direction B in <FIG>) departing from the inner cavity <NUM> of the valve body <NUM> to make the second pipeline <NUM> conducted, the second pipeline <NUM> supplies air to the bubble spraying interface, bubbles are sprayed to the water pool through the second pipeline <NUM>, and bubbles are formed at the bottom of the pool to achieve a bubbling function. When the air pump is in an activated state, under the action of the air pressure in the inner cavity <NUM> of the valve <NUM>, the first elastic member <NUM> maintains a compressed state.

When the air pump is in a closed state, the inner cavity <NUM> of the valve body <NUM> relieves pressure. After pressure relief, the first elastic member <NUM> returns, the first valve core <NUM> moves along the extending direction of the second pipeline <NUM> relative to the first axial extension portion <NUM>, and the first valve head <NUM> moves along a direction (shown in a direction C in <FIG>) facing toward the inner cavity <NUM> of the valve body <NUM> under the action of an elastic force until the first valve head <NUM> is attached to the communicating position of the second pipeline <NUM> and the inner cavity <NUM> to seal the second pipeline <NUM>.

According to the present disclosure, there are at least two first sealing members which are arranged along the extending direction of the second pipeline <NUM> at intervals. Referring to <FIG>, in this embodiment, there are two first sealing members which are arranged along the extending direction (shown in a direction Y in <FIG>) of the second pipeline <NUM> at intervals. In other embodiments, other numbers of first sealing members may be provided.

In addition, in this embodiment, the first valve head <NUM> is spherical. An outer surface of the first valve head <NUM> may be a complete spherical surface and may also be a partial spherical surface. After this arrangement, the first valve core <NUM> may be effectively limited and fixed when the one-way valve <NUM> is ventilated and when the one-way valve <NUM> does not work, the first valve core <NUM> does not swing along a radial direction (a direction vertical to the extending direction of the second pipeline <NUM>), the first valve head <NUM> may be reset accurately and attached to the communicating position of the second pipeline <NUM> and the inner cavity <NUM> when the first elastic member <NUM> is reset, thus preventing the defects of non-tight sealing and damage to the one-way valve <NUM> due to inclination and dislocation of the first valve core <NUM> caused by that the first valve core <NUM> swings when the first elastic member <NUM> resets.

In addition, continuously referring to <FIG>, in this embodiment, an inclined surface matched with the spherical first valve head <NUM> is arranged at the communicating position of the second pipeline <NUM> and the inner cavity <NUM>, so that the outer surface of the first valve head <NUM> is attached to the inclined surface to realize sealing.

It should be noted that in this embodiment, the second pipeline <NUM> is vertical to the valve body <NUM>, so that the air pressure in the inner cavity <NUM> of the valve body <NUM> acts on the second pipeline <NUM>. That is, the extending direction (shown in the direction Y in <FIG>) of the second pipeline <NUM> is vertical to the extending direction (shown in a direction X in <FIG>) of the valve body <NUM>. In other embodiments, the second pipeline may be not vertical to the valve body, and the inner cavity of the valve body is able to communicate with the second pipeline.

Continuously referring to <FIG> and <FIG>, in this embodiment, the first pipeline <NUM> is provided with an end cover <NUM>. Along the extending direction of the second pipeline <NUM>, the end cover <NUM> is arranged on a body portion of the second pipeline <NUM>, and a sealing member <NUM> is arranged between the end cover <NUM> and the body portion of the second pipeline <NUM>. In this embodiment, the sealing member <NUM> is an O-shaped sealing ring. In other embodiments, there may be other types of sealing members which can realize sealing between the end cover and the body portion of the second pipeline.

Referring to <FIG> and <FIG>, in this embodiment, a lid <NUM> is arranged at one end, configured to be connected to an inflating interface, of the third pipeline <NUM>. The lid <NUM> covers one end, configured to be connected to the inflating interface, of the third pipeline <NUM>. After the lid <NUM> is unscrewed, the lid <NUM> is separated from the third pipeline <NUM>, so that conduction of the third pipeline <NUM> can be realized. The third pipeline <NUM> is connected to the inflating interface, so that the pool may be inflated. After the pool is inflated, the third pipeline <NUM> is separated from the inflating interface, one end, configured to be connected to the inflating interface, of the third pipeline <NUM> is screwed on the lid <NUM>, and the third pipeline <NUM> is in a closed state.

Equivalently, in this embodiment, the lid <NUM> is arranged on the third pipeline <NUM>, thus controlling the third pipeline <NUM> to be in a communicating state or a closed state. In other embodiments, the third pipeline may be conducted or closed by other methods. For example, a control valve is mounted in the third pipeline, and the third pipeline is conducted or closed by opening or closing the control valve.

Referring to <FIG> and <FIG>, the one-way valve <NUM> according to the present disclosure further includes: a fourth pipeline <NUM> arranged on the valve body <NUM>, wherein a second sealing member is arranged in the valve body <NUM>, and the second sealing member is able to seal the fourth pipeline <NUM> under the action of air pressure and make the fourth pipeline <NUM> conducted after pressure relief. In this embodiment, along the extending direction (shown in the direction X in <FIG>) of the valve body <NUM>, the first pipeline <NUM> and the fourth pipeline <NUM> are arranged at two ends of the valve body <NUM> respectively, and the second pipeline <NUM> and the third pipeline <NUM> are arranged on an outer circumferential surface of the valve body <NUM> at intervals. The third pipeline <NUM> is vertical to valve body <NUM>. In other embodiments, the third pipeline may be not vertical to the valve body, and the inner cavity of the valve body is able to communicate with the third pipeline. Referring <FIG> and <FIG>, in this embodiment, the third pipeline <NUM> is closer to the fourth pipeline <NUM> than the second pipeline <NUM>.

The second sealing member includes: a sealing sheet <NUM> and a second elastic member <NUM>. Along the extending direction (shown in the direction X in <FIG>) of the valve body <NUM>, one end of the second elastic member <NUM> abuts against the sealing sheet <NUM> and the other end of the second elastic member <NUM> abuts against the fourth pipeline <NUM>. The sealing sheet <NUM> is able to be attached to a communicating position of the fourth pipeline <NUM> and the inner cavity <NUM> under the action of air pressure to seal the fourth pipeline <NUM> and be separated from the communicating position of the fourth pipeline <NUM> and the inner cavity <NUM> after pressure relief to make the fourth pipeline <NUM> conducted. In this embodiment, the second elastic member <NUM> is a spring. In other embodiments, there may be other types of elastic members capable of applying an elastic force to the sealing sheet.

In this embodiment, the second sealing member further includes: a second valve core <NUM>. The sealing sheet <NUM> is arranged on the second valve core <NUM> and the second valve core <NUM> is inserted on the fourth pipeline <NUM>. In this embodiment, the sealing sheet <NUM> sleeves the second valve core <NUM>. One end of the second elastic member <NUM> abuts against the second valve core <NUM>. In this embodiment, the second elastic member <NUM> sleeves the second valve core <NUM>. In combination with the second valve core <NUM> and the second elastic member <NUM>, the movement stability of the sealing sheet <NUM> in the extending direction of the valve body <NUM> is improved, so that the sealing sheet <NUM> is attached to or separated from the communicating position of the fourth pipeline <NUM> and the inner cavity <NUM>. Equivalently, the second valve core <NUM> may play a guiding role. In other embodiments, the second elastic member may not sleeve the second valve core.

Continuously referring to <FIG>, in this embodiment, a second axial extension portion <NUM> is arranged on the fourth pipeline <NUM>, the second valve core <NUM> is inserted in the second axial extension portion <NUM>, and the movement of the second valve core <NUM> away from second axial extension portion <NUM> along an axial direction is limited after pressure relief. The second valve core <NUM> is able to move along the extending direction of the valve body <NUM> relative to the second axial extension portion <NUM>. Equivalently, the second axial extension portion <NUM> may play a guiding role.

In this embodiment, a bolt <NUM> is inserted in the second valve core <NUM>. The bolt <NUM> is able to abut against on end, away from the sealing sheet <NUM>, of the second axial extension portion <NUM> along the axial direction. The axial direction is consistent with the extending direction of the valve body <NUM>. After the bolt <NUM> is arranged and the second elastic member <NUM> returns, the movement of the second valve core <NUM> away from the second axial extension portion <NUM> along the axial direction is limited, thus preventing the second valve core <NUM> from fall off the second axial extension portion <NUM> in the movement process and avoiding the influence on the sealing of the fourth pipeline <NUM>.

Specifically, when the air pump is in an activated state, under the action of the air pressure in the inner cavity <NUM> of the valve body <NUM>, the second elastic member <NUM> is compressed, the second valve core <NUM> moves along the extending direction of the valve body <NUM> relative to the second axial extension portion <NUM>, the sealing sheet <NUM> moves along a direction (shown in a direction D in <FIG>) facing toward the fourth pipeline <NUM>, the sealing sheet <NUM> is attached to the communicating position of the fourth pipeline <NUM> and the inner cavity <NUM> under the action of the air pressure, and an opening <NUM> of the fourth pipeline <NUM> is closed, thereby realizing sealing of the fourth pipeline <NUM>. After this arrangement, the air pressure in the inner cavity <NUM> of the valve body <NUM> may act on the second pipeline <NUM> and the third pipeline <NUM> well, the second pipeline <NUM> and the third pipeline <NUM> are able to communicate with the inner cavity <NUM> of the valve body <NUM>, and the second pipeline <NUM> and the third pipeline <NUM> may completely utilize the air pressure in the inner cavity <NUM>, thus achieving the bubbling and inflating functions. When the air pump is in an activated state, under the action of the air pressure in the inner cavity <NUM> of the valve <NUM>, the second elastic member <NUM> maintains a compressed state, the second pipeline <NUM> may continuously realize the bubbling function, and the third pipeline <NUM> may continuously realize the inflating function.

When the air pump is in a closed state, the inner cavity <NUM> of the valve body <NUM> relieves pressure. After pressure relief, the second elastic member <NUM> returns, the second valve core <NUM> moves along the extending direction of the valve body <NUM> relative to the second axial extension portion <NUM>, the sealing sheet <NUM> moves along a direction (shown in a direction P in <FIG>) away from the fourth pipeline <NUM> until the sealing sheet <NUM> is separated from the communicating position of the fourth pipeline <NUM> and the inner cavity <NUM>, and the opening <NUM> of the fourth pipeline <NUM> is in an open state, thus realizing conduction of the fourth pipeline <NUM>.

In this embodiment, along a radial direction (a direction vertical to the extending direction of the valve body <NUM>), the sealing sheet <NUM> and an inner wall of the valve body <NUM> have a radial interface A. after the inner cavity <NUM> of the valve body <NUM> relieves pressure, the radial interval A communicates with the fourth pipeline <NUM>. After this arrangement, when the first elastic member <NUM> and the second elastic member <NUM> are in failure, water in the pool flows back, but does not flow to one end of the air pump and directly flows out from the bottom of the one-way valve <NUM>, that is, water flows to the fourth pipeline <NUM> through the radial interval A and finally flows out directly from the fourth pipeline <NUM>, thereby effectively protecting normal work of the air pump and other parts.

In addition, referring to <FIG>, in this embodiment, after the inner cavity <NUM> of the valve body <NUM> relieves pressure, there is an axial interval between the sealing sheet <NUM> and the fourth pipeline <NUM>, and the third pipeline <NUM> is able to communicate with the radial interval A through the axial interval. When the first elastic member <NUM> and the second elastic member <NUM> are in failure, water in the pool flows back and water may also flow out through the third pipeline <NUM>. In addition, the inflating function of the third pipeline <NUM> will not be affected.

The embodiment of the present disclosure further provides an air supply system for a massage pool (not shown in the figure). The air supply system for the massage pool includes: a pool, the pool having a bubble spraying interface; the one-way valve <NUM> as defined in any one of the above embodiments, the second pipeline <NUM> of the one-way valve <NUM> being connected to the bubble spraying interface; and an air pump, connected to the first pipeline <NUM>. The bubbling function is realized by the one-way valve <NUM>.

The embodiment of the present disclosure further provides an air supply system for a massage pool (not shown in the figure). The air supply system for the massage pool includes: a pool, the pool having an inflating interface; the one-way valve <NUM> as defined in any one of the above embodiments, the third pipeline <NUM> of the one-way valve <NUM> being connected to the inflating interface; and an air pump, connected to the first pipeline <NUM>. The inflating function is realized by the one-way valve <NUM>.

The embodiment of the present disclosure further provides an air supply system for a massage pool (not shown in the figure). The air supply system for the massage pool includes: a pool, the pool having a bubble spraying interface and an inflating interface; the one-way valve <NUM> as defined in any one of the above embodiments, the second pipeline <NUM> of the one-way valve <NUM> being connected to the bubble spraying interface, and the third pipeline <NUM> of the one-way valve <NUM> being connected to the inflating interface; and an air pump, connected to the first pipeline <NUM>. The bubbling and inflating functions are realized by the one-way valve <NUM>. The inflating interface and the bubble spraying interface may be located at the same pool and may also be located at different pool bodies. Equivalently, the same one-way valve <NUM> may perform inflating and bubbling operation for the same pool, and may also perform inflating and bubbling operation for different pool bodies.

Claim 1:
A one-way valve (<NUM>), comprising:
a valve body (<NUM>), having an inner cavity (<NUM>);
a first pipeline (<NUM>) arranged on the valve body (<NUM>), wherein, one end of the first pipeline (<NUM>) communicates with the inner cavity (<NUM>) and the other end of the first pipeline is configured to be connected to an air pump;
a second pipeline (<NUM>) arranged on the valve body (<NUM>), wherein, one end of the second pipeline (<NUM>) communicates with the inner cavity (<NUM>) and the other end of the second pipeline is configured to be connected to a spray bubble interface of a pool; and
a third pipeline (<NUM>) arranged on the valve body (<NUM>), wherein, one end of the third pipeline (<NUM>) communicates with the inner cavity (<NUM>) and the other end of the third pipeline (<NUM>) is configured to be connected to an inflating interface of the pool;
wherein when the air pump is in an activated state, the second pipeline (<NUM>) is in a communicating state and supplies air to the spray bubble interface, and the third pipeline (<NUM>) is in a communicating state and supplies air to the inflating interface; and
a first sealing member (<NUM>, <NUM>) is arranged in the second pipeline (<NUM>), and the first sealing member (<NUM>, <NUM>) is configured to make the second pipeline (<NUM>) conducted under an action of air pressure and seal the second pipeline (<NUM>) after pressure relief,
characterized by a fourth pipeline (<NUM>) arranged on the valve body (<NUM>), wherein a second sealing member (<NUM>, <NUM>) is arranged in the valve body (<NUM>), and the second sealing member (<NUM>, <NUM>) configured to seal the fourth pipeline (<NUM>) under the action of air pressure and make the fourth pipeline (<NUM>) conducted after pressure relief or when water is flowing back from the pool,
and in that when the air pump is in an activated state, the third pipeline (<NUM>) is in a communicating state with the inner cavity (<NUM>) through the second sealing member (<NUM>, <NUM>).