Delay water outlet valve and shower head using same

Abstract

The invention belongs to the technical field of water valves, and discloses a time-delay water outlet valve and a shower head applying the time-delay water outlet valve, and the time-delay water outlet valve comprises a shell, a first water inlet, a second water inlet, a first water outlet and a second water outlet, the first movable part is installed in the shell and can move between a first position for blocking the first water inlet and a second position for opening the first water inlet, a second cavity is formed in the first movable part, and the second cavity is provided with a second water inlet communicated with the first water inlet and a water outlet channel communicated with the first cavity; the second movable part is mounted in the second cavity and can move between a third position for blocking the second water inlet and a fourth position for opening the second water inlet; the delay water outlet valve is gradually transited to the large-displacement mode from the small-displacement mode, so that the large-displacement water outlet time is effectively delayed, and an early warning effect is achieved during initial water outlet.

Description

Technical Field

[0001] The invention belongs to the technical field of water valves, and in particular relates to a delayed water outlet valve and a shower head using the same. Background Art

[0002] Most of the existing shower water outlet devices are multi-functional. Since shower heads have many water outlet functions, the water outlet indication is not clear enough. When the faucet is turned on, the water outlet function may not be what the current user needs. In particular, for shower heads with top spray water outlet function and handheld water outlet function, if the user wants to use the bottom water outlet function, the top spray water or the shower water is discharged due to operational errors, which can easily splash onto the human body or clothes, giving the user a bad experience. Summary of the invention

[0003] The present invention aims to solve at least one of the above-mentioned technical problems in the related art to a certain extent. To this end, the present invention provides a time-delay water outlet valve.

[0004] To achieve the above object, the technical solution of the present invention is as follows:

[0005] The present invention also provides a shower head having the delayed water outlet valve.

[0006] The delayed water outlet valve according to the first aspect of the present invention comprises:

[0007] A shell body, wherein a first cavity is provided inside the shell body, wherein the first cavity is provided with a first water inlet and a water outlet;

[0008] a first movable member, installed in the housing and capable of moving between a first position for blocking the first water inlet and a second position for opening the first water inlet, the first movable member being provided with a second cavity, the second cavity being provided with a second water inlet communicating with the first water inlet and a water outlet channel communicating with the first cavity;

[0009] The second movable member is installed in the second cavity and can move between a third position for blocking the second water inlet and a fourth position for opening the second water inlet; wherein,

[0010] When water pressure is formed at the first water inlet, the first movable part can move to the second position after being subjected to the water pressure, and the second movable part can move to the fourth position after being subjected to the water pressure. The opening time of the second water inlet is earlier than the opening time of the first water inlet, and the water outlet flow rate from the water outlet channel to the first cavity is less than the water outlet flow rate from the first water inlet to the first cavity.

[0011] The delayed water outlet valve according to the embodiment of the present invention has at least the following beneficial effects: the delayed water outlet valve gradually transitions from a small displacement mode to a large displacement mode, thereby effectively delaying the large displacement water outlet time and having an early warning effect at the initial water outlet.

[0012] According to some embodiments of the present invention, a third cavity is further provided inside the shell, the first movable part passes through the third cavity and defines a driving cavity and a pressure cavity with the third cavity, a flow hole is provided between the driving cavity and the pressure cavity, and the flow hole is configured so that the flow rate from the driving cavity to the pressure cavity decreases as the water pressure increases, and when the first movable part moves, the cavity of one of the driving cavity and the pressure cavity becomes larger, and the cavity of the other becomes smaller.

[0013] According to some embodiments of the present invention, a partition is provided in the third cavity, the first movable part includes a first plug and a second plug, the first plug and the second plug are connected by a connecting rod, the connecting rod passes through the partition, the driving cavity is defined between the first plug and the partition, the pressure cavity is defined between the second plug and the partition, the second cavity is arranged in the first plug, and the flow hole is opened on the partition.

[0014] According to some embodiments of the present invention, the first elastic member further comprises a first elastic member, wherein the first elastic member applies a first elastic force to the first movable member to move it to the first position, and the second elastic member applies a second elastic force to the second movable member to move it to the third position, and the first elastic force is greater than the second elastic force.

[0015] According to some embodiments of the present invention, the partition extends an edge toward one side of the driving chamber, the edge and the side wall of the driving chamber form a water passage chamber, the flow hole connects the water passage chamber and the pressure chamber, an elastic flow limiting ring is installed in the water passage chamber, and the flow limiting ring elastically deforms as the water pressure in the water passage chamber increases to gradually increase the water inlet blocking area of ​​the flow hole.

[0016] According to some embodiments of the present invention, a cross section of the flow hole gradually expands along a radial direction of the flow limiting ring in a direction away from a center of the flow limiting ring.

[0017] According to some embodiments of the present invention, a one-way water supply structure is provided between the driving chamber and the pressure chamber, and the one-way water supply structure is configured to only supply water in one direction from the pressure chamber to the driving chamber.

[0018] According to some embodiments of the present invention, the one-way water supply structure includes a V-shaped sealing ring, the sealing ring is sleeved on the first movable part, a first through hole is opened on the partition, the first movable part is passed through the first through hole, the sealing ring is located in the driving cavity and abuts against the partition, and the opening side of the sealing ring faces the driving cavity.

[0019] According to some embodiments of the present invention, the first plug member includes a first plug body and a second plug body, the connecting rod extends from the first plug body toward a side of the partition, the first plug body is buckled with the second plug body on a side facing the first water inlet, the second cavity is defined between the first plug body and the second plug body, the second water inlet is formed on the end of the second plug body, and a second through hole is opened on the side wall of the first plug body to form the water outlet channel.

[0020] The shower head according to the second embodiment of the present invention comprises a delayed water outlet valve.

[0021] The shower head according to the embodiment of the present invention has at least the following beneficial effects: when the user opens the water valve of the shower head, a small amount of water is discharged from one of the top spray, the handheld spray head or the back spray head, and the user has sufficient reaction adjustment time to switch to the required water outlet for water spraying. The user can also have sufficient time to close the water valve when the water valve of the shower head is opened by accident, so as to avoid water from being accidentally sprayed on the body, thereby achieving an early warning effect.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0024] Figure 1 It is a schematic diagram of the structure breakdown of the delayed water outlet valve;

[0025] Figure 2 It is a schematic diagram of the structure of the shell;

[0026] Figure 3 is a schematic structural diagram of a first movable member;

[0027] Figure 4 is a schematic diagram of a situation in which the first movable member inside the delayed water outlet valve is located at the first position and the second movable member is located at the third position;

[0028] Figure 5 is a schematic diagram of a situation in which the first movable member inside the delayed water outlet valve is located at the first position and the second movable member is located at the fourth position;

[0029] Figure 6 is a schematic diagram of a case where the first movable member inside the delayed water outlet valve is located at the second position and the second movable member is located at the fourth position;

[0030] Figure 7 is a top view of the shell;

[0031] Figure 8 yes Figure 7 Schematic diagram of the change in the blocking effect on the flow hole after the current limiting ring is elastically deformed under pressure.

[0032] Figure numerals: shell 100; inner shell 101; outer shell 102; first cavity 110; first water inlet 120; water outlet 130; third cavity 140; drive cavity 141; pressure cavity 142; flow hole 143; partition 150; edge extension 151; first through hole 152; water passage cavity 160; first movable part 200; second cavity 210; second water inlet 220; water outlet channel 230; second through hole 231; first plug 240; first plug body 241; second plug body 242; second plug 250; connecting rod 260; second movable part 300; first elastic part 410; second elastic part 420; limiting ring 510; retaining ring 520; sealing ring 600. DETAILED DESCRIPTION

[0033] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0034] The present invention relates to a delayed water outlet valve, comprising a housing 100 , a first movable part 200 and a second movable part 300 .

[0035] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the shell 100 can be set to a hollow cylindrical shape. A first cavity 110 is provided inside the shell 100, and the first cavity 110 has a first water inlet 120 and a water outlet 130. In the direction shown in the figure, the water outlet 130 is located at the top of the first cavity 110, and the first water inlet 120 is located at the bottom of the first cavity 110. The first movable member 200 is installed in the shell 100, and the first movable member 200 moves between a first position and a second position relative to the shell 100. When the first movable member 200 is in the first position, the first movable member 200 blocks the first water inlet 120, and external water cannot directly enter the first cavity 110 through the first water inlet 120. When the first movable member 200 moves upward to the second position, the first movable member 200 leaves the first water inlet 120, the first water inlet 120 is opened, and external water can flow into the first cavity 110 through the first water inlet 120, and then be discharged to the outside of the housing 100 through the water outlet 130. A second cavity 210 is provided on the first movable member 200. The bottom opening of the second cavity 210 faces the first water inlet 120, and the bottom opening of the second cavity 210 constitutes a second water inlet 220. A water outlet channel 230 is provided on the side wall of the second cavity 210, and the water outlet channel 230 keeps the second cavity 210 connected with the first cavity 110. The second movable member 300 is installed in the second cavity 210, and the second movable member 300 can be plugged into the first movable member 200 through a shaft section. The second movable member 300 can move between the third position and the fourth position relative to the second cavity 210. When the second movable member 300 is located at the third position, the second movable member 300 blocks the second water inlet 220, and external water cannot flow into the second cavity 210 through the second water inlet 220. When the second movable member 300 moves upward to the fourth position, the second movable member 300 leaves the second water inlet 220, and the second water inlet 220 is opened, and external water can flow into the second cavity 210 through the second water inlet 220, and then flow from the second cavity 210 into the first cavity 110 through the water outlet channel 230, and finally be discharged from the water outlet 130. The water outlet channel 230 is set to have a water flow rate to the first cavity 110 that is smaller than the water flow rate to the first cavity 110 from the first water inlet 120, and specifically, the water flow cross-sectional area of ​​the water outlet channel 230 can be set to be smaller than or much smaller than the water flow cross-sectional area of ​​the first water inlet 120.

[0036] The first movable part 200 and the second movable part 300 move mainly under the influence of water pressure. Take the delayed water outlet valve applied to a shower head as an example for explanation. The shower head can be a hand-held shower head, or it can be composed of water outlet parts such as a top spray, a hand-held nozzle, and a back spray. The delayed water outlet valve is installed in the shower head, and the first water inlet 120 and the second water inlet 220 are facing the water inlet side of the shower head, and the water outlet 130 is facing the water outlet side of the shower head. Figure 4As shown, in the initial state, the first movable member 200 is located at the first position to block the first water inlet 120, and the second movable member 300 is located at the third position to block the second water inlet 220. When the control valve of the shower is turned on, water forms water pressure at the first water inlet 120 and the second water inlet 220. The water pressure acts on the ends of the second movable member 300 and the first movable member 200. Figure 5 As shown, the second movable part 300 will be pushed by the water pressure and move earlier than the first movable part 200. The sequential movement of the second movable part 300 and the first movable part 200 can be controlled by a mechanical component, or by an electronically controlled component. The second movable part 300 moves from the third position to the fourth position, and the second water inlet 220 is gradually opened. Water flows through the second water inlet 220, the second cavity 210, the water outlet channel 230, the first cavity 110 and the water outlet 130 in sequence, and the water flows out from the water outlet 130 and is discharged from the water outlet side of the shower. At this time, the outflow of water through the water outlet channel 230 is a small displacement mode, and only a small amount of water flows out of the shower head. As shown in FIG. Figure 6 As shown, as the water pressure on the first water inlet 120 from the water inlet side of the shower increases, the water pressure pushes the first movable part 200 to move from the first position to the second position. After the second movable part 300 moves to the fourth position, it can also push the first movable part 200 to move to the second position. The first water inlet 120 is opened, and water flows directly into the first cavity 110 from the first water inlet 120, and the water flows out from the water outlet 130 and is discharged from the water outlet side of the shower. At this time, the outflow of water from the first inlet, the first cavity 110, and the water outlet 130 is in a large displacement mode, and the shower head sprays water normally. The delayed water outlet valve gradually transitions from the small displacement mode to the large displacement mode, thereby effectively delaying the large displacement water outlet time. In this way, when the user opens the control valve of the shower, a small amount of water is discharged from one of the overhead spray, handheld spray head or back spray. The user has sufficient reaction time to switch to the required water outlet for spraying water. If the control valve of the shower is opened by accident, there is sufficient time to close the control valve, thereby avoiding water from accidentally spraying onto the body and achieving an early warning effect.

[0037] In addition, when the first water inlet 120 and the second water inlet 220 are blocked, water cannot flow back from the water outlet side of the shower to the water inlet side, and the delayed water outlet valve also plays a non-return function. The delayed water outlet valve can also be used in some terminal devices with non-return requirements.

[0038] In one embodiment, if Figure 1 , Figure 2 and Figure 4As shown, the shell 100 can be composed of an inner shell 101 and an outer shell 102. A first cavity 110 is formed between the inner shell 101 and the outer shell 102. A third cavity 140 is formed inside the inner shell 101. The first movable part 200 is arranged in the third cavity 140, and a driving cavity 141 and a pressure cavity 142 are defined between the first movable part 200 and the third cavity 140. The pressure cavity 142 and the driving cavity 141 are distributed up and down in the figure. A flow hole 143 is provided between the driving cavity 141 and the pressure cavity 142. The driving cavity 141 and the pressure cavity 142 are closed cavities, and the two are connected through the flow hole 143. The flow hole 143 is configured so that the flow rate from the driving cavity 141 to the pressure cavity 142 decreases as the water pressure increases. When the first movable part 200 moves, the cavity of one of the driving cavity 141 and the pressure cavity 142 becomes larger, and the cavity of the other becomes smaller. In this embodiment, as Figure 4 As shown, when the first movable member 200 is in the first position, the cavity volume of the driving cavity 141 is at the maximum state, and the driving cavity 141 is filled with water or other liquids; the cavity volume of the pressure cavity 142 is likely to be at the minimum state, which may be a zero volume state. Figure 6 As shown, when the first movable member 200 moves from the first position to the second position, the volume of the driving chamber 141 will decrease as the first movable member 200 rises, and the volume of the pressure chamber 142 will increase as the first movable member 200 rises. The water in the driving chamber 141 flows from the flow hole 143 to the pressure chamber 142. If the water pressure on the first movable member 200 on the water inlet side of the shower increases, the first movable member 200 will accelerate to the second position. Then, when the first movable member 200 accelerates, the water in the driving chamber 141 will increase the pressure on the flow hole 143. At this time, the flow hole 143 will reduce the flow rate due to the increase in water pressure, thereby blocking the first movable member 200 from accelerating, so that the first movable member 200 moves to the second position at a relatively uniform speed, thereby effectively ensuring that the shower has a stable delayed normal water spraying time under high and low water pressure conditions, and the first water inlet 120 will eventually be fully opened, which will not affect the normal water flow of the shower.

[0039] Based on the above embodiments, Figure 2 and Figure 4As shown, a partition 150 is provided in the third cavity 140, and the partition 150 separates the third cavity 140 into two cavities, an upper cavity and an lower cavity. The second movable member 300 includes a first plug 240 and a second plug 250. The first plug 240 and the second plug 250 are piston structures. The first plug 240 and the second plug 250 are connected by a connecting rod 260. The connecting rod 260 can be formed on the first plug 240, and the connecting rod 260 penetrates from the bottom into the lower part of the third cavity 140 and then passes through the partition 150 upward to extend into the upper part of the third cavity 140. The upper end of the connecting rod 260 can be connected to the second plug 250 by means of threads or the like. The first plug 240 is located at the lower part of the third cavity 140, and a driving cavity 141 is defined between the first plug 240, the partition 150 and the lower cavity wall of the third cavity 140. The second plug 250 is located at the upper part of the third cavity 140, and the pressure cavity 142 is defined between the second plug 250, the partition 150 and the upper cavity wall of the third cavity 140. The first plug 240 and the second plug 250 can be provided with sealing members to abut against the cavity wall of the third cavity 140 for water sealing. The flow hole 143 is provided on the partition 150. The first plug 240 and the second plug 250 move synchronously through the connecting rod 260, and the pressure cavity 142 becomes smaller when the driving cavity 141 becomes larger, and the pressure cavity 142 becomes larger when the driving cavity 141 becomes smaller.

[0040] When the control valve of the shower is closed, the first movable member 200 can be manually reset to the first position and the second movable member 300 can be manually reset to the third position. A reset member can also be provided in the delayed water outlet valve to automatically reset the first movable member 200 and the second movable member 300. Figure 1 and Figure 4As shown, it also includes a first elastic member 410 and a second elastic member 420. A first elastic member 410 is provided between the first plugging member 240 and the partition 150. The first elastic member 410 can be a spring, and the first elastic member 410 is sleeved on the connecting rod 260. One end of the first elastic member 410 directly or indirectly abuts on the partition 150, and the other end abuts on the first plugging member 240. The first elastic member 410 applies a first elastic force to the first plugging member 240 to move it to the first position. When the first movable member 200 is acted upon by the water pressure of the first water inlet 120, the driving chamber 141 becomes smaller, and the first elastic member 410 elastically contracts. A second elastic member 420 is provided between the second movable member 300 and the first plugging member 240, and the second elastic member 420 can be a spring. The second elastic member 420 can be sleeved on the first plugging member 240 or the second movable member 300, and one end of the second elastic member 420 abuts on the first plugging member 240, and the other end abuts on the second movable member 300. The second elastic member 420 applies a second elastic force to the second movable member 300 to move it to the third position. When the second movable member 300 is acted upon by the water pressure of the second water inlet 220, the second movable member 300 moves upward and the second elastic member 420 elastically contracts. When the control valve of the shower is turned off, the water pressure at the first water inlet 120 and the second water inlet 220 decreases, the first elastic member 410 and the second elastic member 420 are elastically reset, the first movable member 200 is reset to the first position, and the second movable member 300 is reset to the third position. Among them, the first elastic force is greater than the second elastic force. The first water inlet 120 and the second water inlet 220 are subjected to the same water pressure. Since the second elastic force is smaller than the first elastic force, when water enters the water inlet side of the shower, the second movable member 300 moves to the fourth direction earlier than the first movable member 200. At the same time, in cooperation with the action of the driving chamber 141 and the pressure chamber 142, the first movable member 200 opens the first water inlet 120 at a uniform speed.

[0041] As for how the flow hole 143 can change the flow rate according to the change of water pressure, a valve flap can be provided inside the flow hole 143, and the valve flap can change the opening according to the change of water pressure to control the flow rate of the flow hole 143. Figure 2 , Figure 4 and Figure 7As shown, the partition 150 extends an edge 151 toward one side of the driving chamber 141. The edge 151 is cylindrical and surrounds the connecting rod 260. The edge 151 and the circumferential side wall of the driving chamber 141 form a circular water passage chamber 160. The lower opening of the water passage chamber 160 is connected to the driving chamber 141. The flow hole 143 is aligned with the water passage chamber 160 on the partition 150, and the water passage chamber 160 is connected to the pressure chamber 142 through the flow hole 143. An elastic flow limiting ring 510 is installed in the water passage chamber 160. A hollow snap ring 520 can be installed at the lower opening of the water passage chamber 160, and the flow limiting ring 510 is fixed in the water passage chamber 160 through the snap ring 520. The water in the driving chamber 141 flows through the water chamber 160 and the flow hole 143 in sequence and enters the pressure chamber 142. The current limiting ring 510 is aligned with the lower end of the flow hole 143, and the current limiting ring 510 can partially block the lower end of the flow hole 143. Figure 7 and Figure 8 As shown, when the first movable member 200 accelerates from the first position to the second position, the water pressure of the driving chamber 141 and the water flow chamber 160 increases, and the flow limiting ring 510 is elastically deformed under pressure, increasing the water inlet shielding area of ​​the lower end of the flow hole 143, thereby reducing the flow of the flow hole 143. Specifically, the flow hole 143 is vertically opened in a narrow channel shape on the partition 150. The cross section of the flow hole 143 gradually expands along the radial direction of the flow limiting ring 510 away from the center direction of the flow limiting ring 510. The cross section of the flow hole 143 can be in a triangular or fan-shaped shape. The greater the water pressure on the flow limiting ring 510, the inner side of the flow limiting ring 510 shrinks toward the center, and the projection of the flow limiting ring 510 on the cross section of the flow hole 143 gradually moves toward the center, gradually shielding the flow hole 143, and the shielding area changes linearly, so that the delayed water outlet time of the delayed water outlet valve can be stable or close to a certain threshold.

[0042] In one embodiment, a one-way water supply structure is provided between the drive chamber 141 and the pressure chamber 142. The one-way water supply structure is configured to only supply water from the pressure chamber 142 to the drive chamber 141 in one direction. When the water in the drive chamber 141 flows to the pressure chamber 142, the water can only be transported through the flow hole 143. When the first movable member 200 is reset to the first position, the water in the pressure chamber 142 can flow from the flow hole 143 to the drive chamber 141, and at the same time, the water can flow from the pressure chamber 142 to the drive chamber 141 through the one-way water supply structure, thereby accelerating the speed at which the water flows back to the drive chamber 141, and thus enabling the first movable member 200 to quickly reset to the first position.

[0043] The one-way water delivery structure may be a one-way valve, which is mounted on the partition 150. In this embodiment, Figure 1 and Figure 4As shown, the one-way water supply structure includes a V-shaped sealing ring 600, which is sleeved on the first movable member 200. A first through hole 152 is opened on the partition 150, and the first through hole 152 is opened at the center of the partition 150, and the extension 151 surrounds the first through hole 152. The first movable member 200 is penetrated through the first through hole 152, and there is a certain gap between the first movable member 200 and the first through hole 152. The sealing ring 600 is located in the driving chamber 141 and abuts against the lower side of the partition 150 upward. The opening side of the sealing ring 600 faces the driving chamber 141. When water flows from the driving chamber 141 to the pressure chamber 142, the water impacts the opening side of the sealing ring 600, so that the inner ring wall of the sealing ring 600 is tightly attached to the first movable member 200 and the gap between the first movable member 200 and the first through hole 152 is sealed, so that water can only flow to the pressure chamber 142 through the flow hole 143. When water flows from the pressure chamber 142 to the driving chamber 141, the water impacts the closed side of the sealing ring 600 from the gap between the first through hole 152 and the first movable member 200, and the inner wall of the sealing ring 600 leaves the first movable member 200 to form a gap, and the water can flow from the gap between the sealing ring 600 and the first movable member 200 to the driving chamber 141, thereby realizing a one-way water delivery function. The upper end of the first elastic member 410 can abut against the sealing ring 600, so that the sealing ring 600 can remain abutted against the partition 150.

[0044] In some specific embodiments of the present invention, Figure 1 , Figure 3 and Figure 4 As shown, the first plug 240 includes a first plug body 241 and a second plug body 242. The connecting rod 260 extends from the upper side of the first plug body 241 toward the partition 150. The lower side of the first plug body 241 is buckled with the second plug body 242, and different second plug bodies 242 can be selected to be installed in conjunction with the first plug body 241. The lower side of the first plug body 241 forms a cavity opening downward, and the second plug body 242 is a hollow cylindrical structure. The above-mentioned second cavity 210 is defined between the first plug body 241 and the second plug body 242. The second water inlet 220 is formed at the lower end of the second plug body 242, and a second through hole 231 is opened on the side wall of the first plug body 241 to form a water outlet channel 230. The first water inlet 120 is blocked by the second plug body 242. The aperture of the second through hole 231 is much smaller than the aperture of the first water inlet 120 , so that the flow rate of water flowing from the water outlet channel 230 to the first cavity 110 is much lower than the flow rate of water flowing from the first water inlet 120 to the first cavity 110 .

[0045] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0046] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0047] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0049] In the description of this specification, the description of reference terms such as "some specific embodiments" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0050] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A delayed water outlet valve, characterized in that: include: A housing (100) having a first cavity (110) therein, wherein the first cavity (110) is provided with a first water inlet (120) and a water outlet (130); A first movable member (200) is installed in the housing (100) and is movable between a first position for blocking the first water inlet (120) and a second position for opening the first water inlet (120), wherein the first movable member (200) is provided with a second cavity (210), and the second cavity (210) is provided with a second water inlet (220) communicating with the first water inlet (120) and a water outlet channel (230) communicating with the first cavity (110); The second movable member (300) is installed in the second cavity (210) and is movable between a third position for blocking the second water inlet (220) and a fourth position for opening the second water inlet (220); wherein: When water pressure is generated at the first water inlet (120), the first movable part (200) can move to the second position under the water pressure, and the second movable part (300) can move to the fourth position under the water pressure. The second water inlet (220) is opened earlier than the first water inlet (120), and the water flow rate of the water outlet channel (230) to the first cavity (110) is less than the water flow rate of the first water inlet (120) to the first cavity (110).

2. The delayed water outlet valve according to claim 1, characterized in that: A third cavity (140) is further provided inside the shell (100), the first movable member (200) is arranged in the third cavity (140) and defines a driving cavity (141) and a pressure cavity (142) together with the third cavity (140), a flow hole (143) is provided between the driving cavity (141) and the pressure cavity (142), the flow hole (143) being configured such that the flow rate from the driving cavity (141) to the pressure cavity (142) decreases as the water pressure increases, and when the first movable member (200) moves, the cavity of one of the driving cavity (141) and the pressure cavity (142) becomes larger, while the cavity of the other becomes smaller.

3. The delayed water outlet valve according to claim 2, characterized in that: A partition (150) is provided in the third cavity (140); the first movable member (200) comprises a first plug member (240) and a second plug member (250); the first plug member (240) and the second plug member (250) are connected via a connecting rod (260); the connecting rod (260) is passed through the partition (150); the driving cavity (141) is defined between the first plug member (240) and the partition (150); the pressure cavity (142) is defined between the second plug member (250) and the partition (150); the second cavity (210) is provided in the first plug member (240); and the partition (150) is provided with the flow hole (143).

4. The delayed water outlet valve according to any one of claims 1 to 3, characterized in that: It also includes a first elastic member (410) and a second elastic member (420), wherein the first elastic member (410) applies a first elastic force to the first movable member (200) to move it toward the first position, and the second elastic member (420) applies a second elastic force to the second movable member (300) to move it toward the third position, and the first elastic force is greater than the second elastic force.

5. The delayed water outlet valve according to claim 3, characterized in that: The partition (150) extends an edge (151) toward one side of the drive chamber (141); the edge (151) and the side wall of the drive chamber (141) form a water passage chamber (160); the flow hole (143) connects the water passage chamber (160) and the pressure chamber (142); an elastic flow limiting ring (510) is installed in the water passage chamber (160); the flow limiting ring (510) elastically deforms as the water pressure in the water passage chamber (160) increases, so as to gradually increase the water inlet shielding area of ​​the flow hole (143).

6. The delayed water outlet valve according to claim 5, characterized in that: The cross section of the flow hole (143) gradually expands along the radial direction of the flow limiting ring (510) in a direction away from the center of the flow limiting ring (510).

7. The delayed water outlet valve according to claim 3, characterized in that: A one-way water supply structure is provided between the driving chamber (141) and the pressure chamber (142), and the one-way water supply structure is configured to be able to supply water only in one direction from the pressure chamber (142) to the driving chamber (141).

8. The delayed water outlet valve according to claim 7, characterized in that: The one-way water supply structure comprises a V-shaped sealing ring (600), the sealing ring (600) is sleeved on the first movable part (200), a first through hole (152) is opened on the partition (150), the first movable part (200) is passed through the first through hole (152), the sealing ring (600) is located in the driving cavity (141) and abuts against the partition (150), and the opening side of the sealing ring (600) faces the driving cavity (141).

9. The delayed water outlet valve according to claim 3, characterized in that: The first plug (240) comprises a first plug body (241) and a second plug body (242); the connecting rod (260) extends from the first plug body (241) towards a side of the partition (150); the first plug body (241) is buckled with the second plug body (242) on a side facing the first water inlet (120); the first plug body (241) and the second plug body (242) define a second cavity (210); the second water inlet (220) is formed on an end of the second plug body (242); and a second through hole (231) is provided on a side wall of the first plug body (241) to form the water outlet channel (230).

10. A shower head, characterized in that: It comprises the delayed water outlet valve as described in any one of claims 1 to 9.

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