Instant-closing and instant-stopping structure and water outlet device

Abstract

The utility model provides an instant-closing and instant-stopping structure and a water outlet device. The instant-closing and instant-stopping structure comprises a water passing cavity, a negative pressure generating cavity, a piston rod and an elastic piece. The water passing cavity is provided with a water inlet channel and a water passing channel, the water outlet channel is provided with a water outlet nozzle, and the water outlet nozzle is provided with a soft rubber sealing structure. One end of the negative pressure generating cavity is the front end and communicated with the water inlet channel, and the other end is the rear end and communicated with the water passing channel. And the piston rod is telescopically arranged in the negative pressure generating cavity. The elastic piece pushes the piston rod to extend out of the front end of the pressure generating cavity so as to block the water inlet channel and the water passing channel. According to the utility model, a soft rubber sealing structure and a structure capable of forming negative pressure are combined, so that the technical effect of stopping while closing can be realized, and the utility model has the advantages of high effect speed, difficulty in interference and long maintenance time.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen and bathroom, in particular to an instant-off-and-stop structure and a water outlet. Background Art

[0002] A water outlet, such as a shower head, often still drips after the water is turned off. For this reason, some water outlets with an instant stop-and-go structure are available on the market, which can stop dripping after the water is turned off. For example, some instant stop-and-go structures use a pin to seal the water outlet to avoid dripping. However, the above-mentioned scheme still cannot fully achieve the instant stop-and-go effect, and the structure is complicated, and the instant stop-and-go structure is prone to failure. For this reason, the utility model provides an instant stop-and-go structure with better effect. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a water outlet structure with better instant shut-off and instant stop effect.

[0004] In a first aspect, a stop-and-go structure is provided, comprising a water passage chamber, a negative pressure generating chamber, a piston rod and an elastic member, wherein:

[0005] The water passage cavity is provided with a water inlet channel and a water passage, wherein the water inlet channel is connected to a water source, the water passage is used for water discharge and is provided with a water outlet, and the water outlet is provided with a soft rubber sealing structure, which can destroy its sealing property by deformation when subjected to water pressure.

[0006] One end of the negative pressure generating chamber is the front end, which is connected to the water inlet channel, and the other end is the rear end, which is connected to the water passing channel.

[0007] The piston rod is telescopically installed in the negative pressure generating chamber. The elastic member is arranged between the negative pressure generating chamber and the piston rod, and pushes the piston rod to extend out from the front end of the negative pressure generating chamber to block the water inlet channel and the water passing channel.

[0008] In the instant stop and turn structure provided by the present utility model, when the water is in the water-inflow state, the piston rod is pushed and retracted by the hydraulic force of the water inlet channel. At this time, the water inlet channel and the water-passing channel are connected, the soft rubber sealing structure is opened by the hydraulic force, and the water outlet spout discharges water. In the water-off state, the piston rod is reset and blocks the water inlet channel and the water-passing channel. During the reset process, the end of the piston rod gradually moves away from the rear end of the negative pressure generating chamber, forming a negative pressure acting on the rear end of the negative pressure generating chamber and the water-passing channel, and the soft rubber sealing structure is restored and forms a seal at the water inlet end of the water outlet spout.

[0009] The utility model provides a soft rubber sealing structure at the water outlet, which can block the water outlet when no force is applied, and eliminate the sealing when the water is on and subjected to hydraulic impact, thereby achieving the technical effect of preventing the water outlet from leaking after the water is turned off. In addition, the utility model also provides an elastic piston rod, which can be pushed under the action of hydraulic force to absorb hydraulic force, and when the water is cut off, a negative pressure is formed by resetting, which can form a certain adsorption force on the water in the water passage, and reduce the pressure of residual water on the soft rubber sealing structure. On the one hand, the soft rubber sealing structure can reach balance as soon as possible, shortening the time for the soft rubber sealing structure to restore its sealing performance, and accelerating the response speed of the water outlet after the water is cut off, that is, stopping dripping. On the other hand, the deformation produced by the soft rubber sealing structure is smaller, and the sealing performance is stronger. In addition, through the formed negative pressure space, on the one hand, it can absorb the water entering the water channel at the moment of water stoppage, reducing the amount of water flowing out of the water outlet; on the other hand, it can also absorb the potential energy of the water rushing into the water channel at the moment of water stoppage, further reducing the force of water on the soft rubber sealing structure, thereby further strengthening the sealing of the soft rubber sealing structure, thereby achieving the following technical effects: 1. The technical effect of instant off and on is achieved, and the effect is fast, giving the user a good experience; 2. The sealing effect is good, even if the water outlet is touched or due to the vibration of the pipeline, it is not easy to destroy its internal sealing state, and it is not easy to drip due to shaking; 3. The sealing effect is good, and its equilibrium state will not be destroyed over time due to the influx of some small bubbles, causing the residual water to suddenly drip all at once.

[0010] Preferably, a section of the piston rod toward the rear end of the negative pressure generating chamber is a tail, and a section toward the front end of the negative pressure generating chamber is a head. In order to achieve a greater negative pressure effect, the diameter of the tail is larger than the diameter of the head. Correspondingly, the diameter of the negative pressure generating chamber connected to the water passage is larger than the diameter of the end connected to the water inlet passage. During the resetting and movement of the piston rod, the volume of the cavity formed by the movement of the tail of the piston rod is larger than the volume of water pushed into the water passage by the movement of the head. At this time, the difference between the two volumes forms a negative pressure, and the larger the difference, the greater the negative pressure.

[0011] Preferably, in order to avoid the formation of negative pressure in the middle part of the piston rod when it contracts, which makes the piston rod difficult to be pushed and contracted, the negative pressure generating chamber is provided with a pressure relief hole connected to the outside world near the middle position, and the head root of the piston rod is located between the inner wall of the negative pressure generating chamber and there is a gap, and the gap covers the pressure relief hole. At this time, no matter whether the piston rod is extended or contracted, no negative pressure or an air cavity that is difficult to compress will be generated in the middle part, thereby reducing the force required for the piston rod to extend and retract.

[0012] Preferably, in order to improve the sealing effect, sealing rings are sleeved around the head and tail of the piston rod, and the pressure relief hole is located between the sealing rings at the head and tail.

[0013] Preferably, the elastic member is a spring, which is compressed and arranged at the rear end of the negative pressure generating chamber.

[0014] Preferably, a groove is provided at the tail of the piston rod, and one end of the spring is inserted into the groove, which has good installation stability and is not easy to fall off and fail.

[0015] Preferably, in order to reduce the difficulty of forming the component, the negative pressure generating chamber is arranged close to the outer periphery of the water passing chamber, or, in order to reduce the size, the negative pressure generating chamber is arranged inside the water passing chamber, and the front end of the negative pressure generating chamber faces the water inlet channel.

[0016] Preferably, the soft rubber sealing structure is a conical enclosure surrounding the water inlet end of the water outlet. When the water is not flowing, the top of the conical enclosure abuts against the inner wall of the water inlet channel. When the water is flowing, the conical enclosure is bent by the water flow, and the top is separated from the inner wall of the water inlet channel of the water passage cavity.

[0017] Preferably, the soft glue sealing structure is composed of membrane petals distributed inside the water outlet. When the water is not flowing, the membrane petals are close to each other to block the water outlet, and when the water is flowing, the membrane petals are opened by the water flow.

[0018] In a second aspect, a water dispenser is provided, which adopts the instant-off-and-stop structure described in the first aspect.

[0019] From the above description of the utility model, it can be seen that the utility model has the following beneficial effects:

[0020] The utility model provides a soft rubber sealing structure at the water outlet, which can block the water outlet when no force is applied, and eliminate the sealing when the water is turned on and subjected to hydraulic impact, thereby achieving the technical effect of preventing the water outlet from leaking after the water is turned off.

[0021] The utility model is also provided with an elastic piston rod, which can be pushed up under the action of water force to absorb the water force, and when the water is stopped, it forms a negative pressure by resetting, which can form a certain adsorption force on the water in the water passage;

[0022] Combining the structure of the piston rod forming negative pressure with the soft rubber sealing structure can reduce the pressure of residual water on the soft rubber sealing structure, allow the soft rubber sealing structure to reach equilibrium as soon as possible, shorten the time for the soft rubber sealing structure to restore its sealing performance, and speed up the response speed of the water outlet after water is cut off, that is, no dripping. Moreover, the deformation produced by the soft rubber sealing structure is smaller, and the sealing performance is stronger. In addition, for the residual water, the negative pressure space formed can absorb the water entering the water passage at the moment of water stoppage, reducing the amount of water flowing out of the water outlet. On the other hand, it can also absorb the potential energy of the water rushing into the water passage at the moment of water stoppage, further reducing the force of water on the soft rubber sealing structure, thereby further strengthening the sealing performance of the soft rubber sealing structure, thereby achieving the following technical effects: a. The technical effect of instant off and on is achieved, and the effect speed is fast, giving the user a good experience; b. The sealing effect is good. Even if the water outlet is touched or due to the vibration of the pipeline, it is not easy to destroy its internal sealing state, and it is not easy to drip due to shaking; c. The sealing effect is good. As time goes by, the equilibrium state will not be destroyed due to the influx of some small bubbles, causing the residual water to suddenly drip all at once;

[0023] The two ends of the piston rod have different sizes. When the piston rod is reset and moves, the volume of the cavity formed by the movement of the tail of the piston rod is larger than the volume of water pushed into the water passage by the movement of the head of the piston rod. At this time, the difference between the two volumes forms a negative pressure. The larger the difference, the greater the negative pressure.

[0024] The negative pressure generating chamber is provided with a pressure relief hole connected to the outside near the middle position, so as to avoid the problem that negative pressure is formed in the middle of the piston rod when the piston rod contracts, which makes it difficult for the piston rod to be pushed and contracted. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0026] in:

[0027] Figure 1 It is an explosion that stops and starts Figure 1 ; (the negative pressure generating chamber is located outside the water flow chamber)

[0028] Figure 2 A cutaway view of a stop-and-go structure Figure 1 ; (The negative pressure generating chamber is located outside the water passage chamber, in the water outlet state)

[0029] Figure 3 A cutaway view of a stop-and-go structure Figure 2; (The negative pressure generating chamber is located outside the water passage chamber, in the water-stopped state)

[0030] Figure 4 It is an explosion of a stop-and-go structure. Figure 2 ; (The negative pressure generating chamber is located inside the water flow chamber)

[0031] Figure 5 A cutaway view of a stop-and-go structure Figure 3 ; (The negative pressure generating chamber is located inside the water passage chamber, in the water outlet state)

[0032] Figure 6 A cutaway view of a stop-and-go structure Figure 4 ; (The negative pressure generating chamber is located inside the water passage chamber, in water-stopping state)

[0033] Figure 7 It is the axial view of the piston rod;

[0034] Figure 8 This is a schematic diagram of the soft rubber sealing structure Figure 1 ;

[0035] Fig. 9 This is a schematic diagram of the soft rubber sealing structure Figure 2 ;

[0036] Fig.10 This is a schematic diagram of the soft rubber sealing structure Figure 3 ;

[0037] Fig.11 This is a schematic diagram of the soft rubber sealing structure Figure 4 ;

[0038] Figures 1 to 11 The symbols are: water passage chamber 1, water inlet channel 11, water passage channel 12, water outlet nozzle 13, negative pressure generating chamber 2, front end 21, rear end 22, pressure relief hole 23, piston rod 3, head 31, tail 32, gap 33, elastic part 4, soft rubber sealing structure 5. DETAILED DESCRIPTION

[0039] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention and are not used to limit the present invention.

[0040] See also Figures 1 to 11 , a stop-and-go structure, comprising a water passage chamber 1, a negative pressure generating chamber 2, a piston rod 3 and an elastic member 4, wherein:

[0041] The water passage chamber 1 is provided with a water inlet channel 11 and a water passage channel 12, and a connecting hole is provided between the water inlet channel 11 and the water passage channel 12, wherein the water inlet channel 11 is connected to a water source, and the water passage channel 12 is used for water discharge and is provided with a water outlet 13, and the water outlet 13 is provided with a soft rubber sealing structure 5, and its sealing performance can be destroyed by deformation when subjected to water pressure.

[0042] In this embodiment, Figure 8 The soft rubber sealing structure 5 is a conical enclosure surrounding the water inlet end of the water outlet 13. In the water-off state, the top of the conical enclosure abuts against the inner wall of the water inlet channel 11. In the water-inlet state, the conical enclosure is bent by the water flow, and the top is separated from the inner wall of the water inlet channel 11 of the water passage chamber 1.

[0043] In other embodiments, the soft rubber sealing structure 5 is composed of membrane petals distributed inside the water outlet 13. In the water-off state, the membrane petals are close to each other to block the water outlet 13, and in the water-inflow state, the membrane petals are opened by the water flow. Optionally, the membrane petals can be surrounded by a conical one-way membrane petal structure, such as Fig. 9 , it can also be surrounded by a diaphragm structure with a cross-shaped gap, such as Fig.10 and Fig.11 .

[0044] One end of the negative pressure generating chamber 2 is a front end 21 connected to the water inlet channel 11 , and the other end is a rear end 22 connected to the water passing channel 12 .

[0045] In this embodiment, in order to reduce the difficulty of component molding, the negative pressure generating chamber 2 is arranged close to the outer periphery of the water passage chamber 1. In other embodiments, in order to reduce the size, the negative pressure generating chamber 2 is arranged inside the water passage chamber 1, and the front end 21 of the negative pressure generating chamber 2 faces the water inlet channel 11.

[0046] The piston rod 3 is telescopically installed in the negative pressure generating chamber 2. The elastic member 4 is arranged between the negative pressure generating chamber 2 and the piston rod 3, and pushes the piston rod 3 to extend from the front end 21 of the negative pressure generating chamber, blocking the communicating hole to block the water inlet channel 11 and the water passage 12.

[0047] In one embodiment, a section of the piston rod 3 facing the rear end 22 of the negative pressure generating chamber 2 is a tail 32, and a section facing the front end 21 of the negative pressure generating chamber 2 is a head 31. In order to achieve a greater negative pressure effect, the diameter of the tail 32 is greater than the diameter of the head 31. Correspondingly, the diameter of the end of the negative pressure generating chamber 2 connected to the water passage 12 is greater than the diameter of the end connected to the water inlet passage 11. During the resetting and movement of the piston rod 3, the volume of the cavity formed by the movement of the tail 32 of the piston rod 3 is greater than the volume of water pushed into the water passage 12 by the movement of the head 31. At this time, the difference between the two volumes forms a negative pressure. The greater the difference, the greater the negative pressure. Preferably, in order to improve the sealing effect, the periphery of the head 31 and the tail 32 of the piston rod 3 is provided with a sealing ring, and the pressure relief hole 23 is located between the sealing rings of the head 31 and the tail 32.

[0048] In another embodiment, in order to avoid the formation of negative pressure in the middle part of the piston rod 3 when it contracts, which makes the piston rod 3 difficult to be pushed and contracted, the negative pressure generating chamber 2 is provided with a pressure relief hole 23 connected to the outside near the middle, and the head 31 of the piston rod 3 is located between the inner wall of the negative pressure generating chamber 2 and a gap 33, and the gap 33 covers the pressure relief hole 23. At this time, no matter whether the piston rod 3 is extended or contracted, no negative pressure or an air cavity that is difficult to compress will be generated in the middle, thereby reducing the force required for the piston rod 3 to extend and retract.

[0049] In this embodiment, the elastic member 4 is a spring, which is compressed and arranged at the rear end 22 of the negative pressure generating chamber 2. Preferably, the tail 32 of the piston rod 3 is provided with a groove, and one end of the spring is inserted into the groove, which has good installation stability and is not easy to fall off and fail.

[0050] When the stop-and-go structure provided by the utility model is in the water-inlet state, the piston rod 3 is pushed and contracted by the hydraulic force of the water entering the water inlet channel 11. At this time, the water inlet channel 11 is connected with the water passage 12, the soft rubber sealing structure 5 is flushed open by the hydraulic force, and the water outlet nozzle 13 discharges water.

[0051] When the water is cut off, the piston rod 3 is reset and blocks the water inlet channel 11 and the water flow channel 12. During the resetting process, the end of the piston rod 3 gradually moves away from the rear end 22 of the negative pressure generating chamber 2, forming a negative pressure acting on the rear end 22 of the negative pressure generating chamber 2 and the water flow channel 12. The soft rubber sealing structure 5 is restored and forms a seal at the water inlet end of the water outlet nozzle 13.

[0052] On the basis of the above embodiment, in another embodiment, a water dispenser is provided, which adopts the above-mentioned instant-off-and-stop structure.

[0053] The utility model provides a soft rubber sealing structure 5 at the water outlet 13, which can block the water outlet 13 when no force is applied, and its sealing can be eliminated when the water is on and subjected to hydraulic impact, thereby achieving the technical effect of no water leakage from the water outlet 13 after the water is turned off. In addition, the utility model also provides an elastic piston rod 3, which can be pushed under the action of hydraulic force to absorb hydraulic force, and when the water is cut off, a negative pressure is formed by resetting, which can form a certain adsorption force on the water in the water passage 12, reducing the pressure of residual water on the soft rubber sealing structure 5. On the one hand, the soft rubber sealing structure 5 can reach balance as soon as possible, shortening the time for the soft rubber sealing structure 5 to restore its sealing performance, and accelerating the response speed of the water outlet after the water is cut off, that is, no dripping. On the other hand, the deformation produced by the soft rubber sealing structure 5 is smaller, and the sealing performance is stronger. In addition, through the formed negative pressure space, on the one hand, it can absorb the water entering the water channel 12 at the moment of water stoppage, reducing the amount of water flowing out of the water outlet 13; on the other hand, it can also absorb the potential energy of the water rushing into the water channel 12 at the moment of water stoppage, further reducing the force of water on the soft glue sealing structure 5, thereby further strengthening the sealing of the soft glue sealing structure 5, thereby achieving the following technical effects: 1. The technical effect of instant off and on is achieved, and the effect speed is fast, which gives the user a good experience; 2. The sealing effect is good. Even if the water outlet is touched or due to the vibration of the pipeline, it is not easy to destroy its internal sealing state, and it is not easy to drip due to shaking; 3. The sealing effect is good. As time goes by, the equilibrium state will not be destroyed due to the influx of some small bubbles, causing the residual water to suddenly drip all at once.

[0054] 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", "axial", "radial", "circumferential" 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, and do not indicate or imply 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 a limitation on the present invention.

[0055] 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 at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0056] 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 one; it can be a mechanical connection, an electrical connection, or communication with each other; 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, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0058] In the present utility model, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. mean 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 utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0059] Although the above embodiments have been shown and described, it is to be understood that the above embodiments are illustrative and cannot be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present invention.

Claims

1. A stop-and-go structure, characterized in that: It includes a water passage chamber, a negative pressure generating chamber, a piston rod and an elastic member; The water passage cavity is provided with a water inlet channel and a water passage; the water passage is provided with a water outlet nozzle, and the water outlet nozzle is provided with a soft rubber sealing structure; One end of the negative pressure generating chamber is the front end, connected to the water inlet channel, and the other end is the rear end, connected to the water flow channel; The piston rod is telescopically installed in the negative pressure generating chamber; The elastic member is arranged between the negative pressure generating chamber and the piston rod, and pushes the piston rod to extend out from the front end of the negative pressure generating chamber to block the water inlet channel and the water passing channel; In the water inlet state, the piston rod is pushed and retracted by the water inlet hydraulic pressure of the water inlet channel, the water inlet channel is connected with the water passage, the soft rubber sealing structure is opened by the hydraulic pressure, and water flows out of the water outlet; In the water-stop state, the piston rod is reset and blocks the water inlet channel and the water flow channel. During the resetting process, the end of the piston rod gradually moves away from the rear end of the negative pressure generating chamber, forming a negative pressure acting on the rear end of the negative pressure generating chamber and the water flow channel. The soft rubber sealing structure is restored and forms a seal at the water inlet end of the water outlet.

2. The instant-off-and-stop structure according to claim 1, characterized in that: The section of the piston rod toward the rear end of the negative pressure generating chamber is the tail, and the section toward the front end of the negative pressure generating chamber is the head. The diameter of the tail is greater than the diameter of the head. Correspondingly, the diameter of the end of the negative pressure generating chamber connected to the water passage is greater than the diameter of the end connected to the water inlet passage.

3. The instant-off-and-stop structure according to claim 2, characterized in that: The negative pressure generating chamber is provided with a pressure relief hole communicating with the outside near the middle, and the head root of the piston rod is located at the inner wall of the negative pressure generating chamber with a gap, and the gap covers the pressure relief hole.

4. The instant-off-and-stop structure according to claim 3, characterized in that: The head and tail of the piston rod are covered with sealing rings, and the pressure relief hole is located between the sealing rings of the head and tail.

5. The instant-off-and-stop structure according to claim 1, characterized in that: The elastic member is a spring, which is compressed and arranged at the rear end of the negative pressure generating chamber.

6. The instant-off-and-stop structure according to claim 5, characterized in that: The tail of the piston rod is provided with a groove, and one end of the spring is inserted into the groove.

7. The instant-on-off-stop structure according to claim 1, characterized in that: The negative pressure generating chamber is arranged close to the outer periphery of the water passing chamber, or the negative pressure generating chamber is arranged inside the water passing chamber, and the front end of the negative pressure generating chamber faces the water inlet channel.

8. The instant-off-and-stop structure according to claim 1, characterized in that: The soft rubber sealing structure is a conical enclosure surrounding the water inlet end of the water outlet; when the water is not in the water state, the top of the conical enclosure is against the inner wall of the water inlet channel, and when the water is in the water state, the conical enclosure is bent by the water flow, and the top is separated from the inner wall of the water inlet channel of the water cavity.

9. The instant-off-and-stop structure according to claim 7, characterized in that: The soft rubber sealing structure is composed of membrane petals distributed inside the water outlet; in the water-off state, the membrane petals are close to each other to block the water outlet, and in the water-inflow state, the membrane petals are flushed open by the water flow.

10. A water outlet, characterized in that: The instant-on-off-stop structure according to any one of claims 1 to 9 is adopted.

Images