CN220505914U - Time delay valve and water outlet device - Google Patents

Abstract

The utility model discloses a delay valve and a water outlet device, wherein the delay valve comprises a valve body, a cavity structure and a valve core, and the valve body is provided with a flow passage; the cavity structure is positioned in the valve body and comprises a driving cavity and a sealing balance cavity, and a unidirectional flow passage and a delay passage are arranged between the driving cavity and the sealing balance cavity; the valve core is provided with a first sealing part and a second sealing part, the valve core is movably arranged on the valve body, one end of the valve core extends out of one end of the valve body, the first sealing part is in sealing and sliding fit with the driving cavity, the valve core is provided with a first position and a second position on the movable stroke of the valve core, when the valve core is in the first position, the first sealing part seals the flow passage, and when the valve core is in the second position, the first sealing part opens the flow passage. The utility model aims to solve the problems that the existing time delay valve is affected by water quality, water pressure and the like and is unstable to use.

Description

Time delay valve and water outlet device

Technical Field

The utility model relates to the technical field of delay water valves, in particular to a delay valve.

Background

The existing time delay valve is commonly communicated with a tap water pipeline through an inner cavity of a valve body, a valve core is pushed against by pressure of tap water entering the inner cavity to realize sealing of a water outlet flow channel, obviously, when the time delay valve is arranged in such a way, a user presses the valve core to open the water outlet flow channel when the water pressure of tap water is related to the water pressure of tap water, when the water pressure of tap water is unstable, the time delay valve is unstable to use, dirt, sediment and the like exist in tap water, the time delay valve possibly resides in the valve body, the normal use of the valve core is influenced by long-time accumulation, and the service life of the time delay valve is reduced. Therefore, there is a need for a self-controlled delay valve that overcomes the above-mentioned drawbacks by eliminating the current situation of using the water pressure of tap water to realize functions.

Disclosure of Invention

The utility model mainly aims to provide a time delay valve and a water outlet device, and aims to solve the problems that the existing time delay valve is affected by water quality, water pressure and the like and is unstable in use.

To achieve the above object, the present utility model provides a time delay valve, wherein the time delay valve includes:

a valve body provided with an overcurrent passage;

the cavity structure is positioned in the valve body and comprises a driving cavity and a sealing balance cavity, a unidirectional flow passage and a delay passage are arranged between the driving cavity and the sealing balance cavity, the flow direction of the unidirectional flow passage is from the driving cavity to the sealing balance cavity, and the sealing balance cavity is arranged to be elastically deformed with the change of the pressure of the inner cavity; the method comprises the steps of,

the valve core is provided with a first sealing part and a second sealing part, the valve core is movably arranged on the valve body, one end of the valve core extends out of one end of the valve body, the first sealing part is in sealing and sliding fit with the driving cavity, the valve core is provided with a first position and a second position on the moving stroke of the valve core, when the valve core is in the first position, the first sealing part seals the flow passage, the volume of a sealing cavity defined by the second sealing part and the driving cavity is v1, when the valve core is in the second position, the first sealing part opens the flow passage, and the volume of a sealing cavity defined by the second sealing part and the driving cavity is v2, and v1 is larger than v2.

Optionally, the sealing balance cavity is disposed in the valve core inner cavity, and is communicated with the driving cavity through an opening located on the second sealing portion, and a one-way valve structure is disposed at the opening to form the one-way flow channel.

Optionally, the one-way valve structure includes a sealing pad disposed at the opening, and an elastic structure for resetting the sealing pad, the sealing pad having a closed state for sealing the opening and an open state for opening the opening, the elastic structure being used for maintaining the closed state of the sealing pad.

Optionally, a flow passage for communicating the driving cavity and the sealing balance cavity is formed in the sealing gasket, and the flow passage forms the delay passage.

Optionally, the inner cavity of the valve core is provided with a piston elastically connected with the cavity wall, and the piston is sealed with the inner cavity of the valve core to define the sealed balance cavity.

Optionally, the mounting hole has been seted up from the tip of the one end that the valve core stretches out from the valve body, mounting hole department installs and stretches into the regulation dog of case inner chamber, just the regulation dog stretches into the adjustable setting of degree of depth in the case, the piston with regulation dog elastic connection.

Optionally, the side wall of the valve body is provided with a water inlet and a water outlet at intervals to form a flow passage passing through the valve body, the valve core is located at the first position, and the first sealing part seals at least one of the water inlet and the water outlet.

Optionally, a limiting blocking piece is arranged at a position of the valve body between the water inlet and the water outlet, and the first sealing part is in sliding abutting contact with the limiting blocking piece to limit the first position.

Optionally, the limit stopper is detachable, and the limit stopper is dorsad one side of the first sealing part with be provided with bearing structure between the valve body.

Optionally, a via hole is formed at one end of the valve body, the size of the via hole is equal to or greater than that of the first sealing part, a sealing collar is detachably arranged at the via hole, and the sealing collar is sleeved on the valve core.

The utility model also provides a water outlet device, wherein the water outlet device comprises a time delay valve, the time delay valve comprises a valve body, a cavity structure and a valve core, and the valve body is provided with a flow passage; the cavity structure is positioned in the valve body and comprises a driving cavity and a sealing balance cavity, a unidirectional flow passage and a delay passage are arranged between the driving cavity and the sealing balance cavity, the flow direction of the unidirectional flow passage is from the driving cavity to the sealing balance cavity, and the sealing balance cavity is arranged to be elastically deformed with the change of the pressure of the inner cavity; the valve is characterized in that a first sealing part and a second sealing part are arranged on the valve core, the valve core is movably arranged on the valve body, one end of the valve core extends out of one end of the valve body, the first sealing part is in sealing and sliding fit with the driving cavity, the valve core is provided with a first position and a second position on the moving stroke of the valve core, when the valve core is in the first position, the first sealing part seals the flow passage, the volume of a sealing cavity defined by the second sealing part and the driving cavity is v1, when the valve core is in the second position, the first sealing part opens the flow passage, and the volume of a sealing cavity defined by the second sealing part and the driving cavity is v2, and v1 is larger than v2.

According to the technical scheme, the independent sealing self-circulation cavity structure is arranged in the valve body, so that the dependence on the water pressure of tap water is eliminated, the automatic control of the time delay valve is realized, and the use stability of the time delay valve is ensured. Specifically, the bottom of the valve body is provided with the driving cavity, the second sealing part on the valve core and the bottom of the driving cavity define a sealing cavity, the sealing cavity and the sealing balance cavity are communicated with the time delay channel through the unidirectional flow channel so as to form an independent sealed self-circulation system, when a user presses the valve core, the valve core moves from the first position to the second position, the water outlet channel is opened, a flowing medium in the sealing cavity flows into the sealing balance cavity through the unidirectional flow channel, the sealing balance cavity is pressed and elastically deforms to accumulate elastic potential energy, at the moment, the user releases the elastic potential energy accumulated in the sealing balance cavity, the sealing balance cavity is driven to restore to extrude the medium in the sealing balance cavity to flow back into the sealing cavity through the time delay channel so as to push the valve core to return to the first position, the flowing channel is sealed through the first sealing part, and the closing of the time delay valve is completed. As above, the delay channel is controlled at a smaller level by controlling the flow of the medium, so that the medium slowly flows to realize a delay function, the whole working process of the delay valve is realized by the internal circulation of the cavity structure without the participation of tap water, so that the working process of the delay valve is not influenced by fluctuation of tap water pressure, dirt impurities in tap water can not enter the cavity structure, the influence of dirt accumulation on the service life of the delay valve is slowed down, the stable use requirement of the delay valve is met, and the use Shu Zao sense of the delay valve is improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of an embodiment of a delay valve according to the present utility model;

FIG. 2 is a schematic plan view of FIG. 1;

FIG. 3 is an exploded view of FIG. 1;

FIG. 4 is a schematic cross-sectional view of the support structure of FIG. 1;

FIG. 5 is a schematic cross-sectional view of the valve cartridge of FIG. 1;

FIG. 6 is an exploded view of the valve cartridge of FIG. 1;

FIG. 7 is a schematic cross-sectional view of the delay valve of FIG. 1 in a closed state;

FIG. 8 is a schematic cross-sectional view of the time delay valve of FIG. 1 in a half-open state;

fig. 9 is a schematic cross-sectional view of the time delay valve of fig. 1 in an open state.

Reference numerals illustrate:

reference numerals	Name of the name	Reference numerals	Name of the name
				1000	Time delay valve	231	One-way valve structure
1	Valve body	2311	Sealing gasket
				11	Flow passage	2312	Elastic structure
12	Water inlet	24	Delay channel
				13	Water outlet	241	Flow passage
14	Limiting stop piece	3	Valve core
				15	Supporting structure	31	A first sealing part
16	Via hole	32	Second sealing part
				17	Sealing collar	321	An opening
2	Cavity structure	33	Piston
				21	Driving cavity	34	Mounting hole
22	Sealed balance cavity	35	Adjusting stop block
				23	Unidirectional flow passage

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present utility model, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The existing time delay valve is commonly communicated with a tap water pipeline through an inner cavity of a valve body, a valve core is pushed against by pressure of tap water entering the inner cavity to realize sealing of a water outlet flow channel, obviously, when the time delay valve is arranged in such a way, a user presses the valve core to open the water outlet flow channel when the water pressure of tap water is related to the water pressure of tap water, when the water pressure of tap water is unstable, the time delay valve is unstable to use, dirt, sediment and the like exist in tap water, the time delay valve possibly resides in the valve body, the normal use of the valve core is influenced by long-time accumulation, and the service life of the time delay valve is reduced. Therefore, there is a need for a self-controlled delay valve that overcomes the above-mentioned drawbacks by eliminating the current situation of using the water pressure of tap water to realize functions.

In view of this, the present utility model provides a time delay valve, and fig. 1 to 9 are schematic views of an embodiment of the time delay valve according to the present utility model, and the time delay valve will be described with reference to the specific drawings.

Referring to fig. 1 to 9, the time delay valve 1000 includes a valve body 1, a cavity structure 2, and a valve core 3, where the valve body 1 is provided with a flow passage 11; the cavity structure 2 is located in the valve body 1, the cavity structure 2 comprises a driving cavity 21 and a sealing balance cavity 22, a unidirectional flow passage 23 and a delay passage 24 are arranged between the driving cavity 21 and the sealing balance cavity 22, the unidirectional flow passage 23 flows from the driving cavity 21 to the sealing balance cavity 22, and the sealing balance cavity 22 is arranged to be elastically deformed with the change of the pressure of an inner cavity; the valve core 3 is provided with a first sealing part 31 and a second sealing part 32, the valve core 3 is movably arranged on the valve body 1, one end of the valve core extends out from one end of the valve body 1, the first sealing part 31 is in sealing and sliding fit with the driving cavity 21, the valve core 3 has a first position and a second position on the movable stroke of the valve core 3, when in the first position, the first sealing part 31 seals the through-flow channel 11, the second sealing part 32 and the driving cavity 21 define a sealing cavity with a volume v1, when in the second position, the first sealing part 31 opens the through-flow channel 11, and when in the second position, the second sealing part 32 and the driving cavity 21 define a sealing cavity with a volume v2, and v1 is larger than v2.

According to the technical scheme, the independent sealing self-circulation cavity structure 2 is arranged in the valve body 1, so that the dependence on the water pressure of tap water is eliminated, the automatic control of the time delay valve 1000 is realized, and the use stability of the time delay valve 1000 is ensured. Specifically, the bottom of the valve body 1 is provided with the driving cavity 21, the second sealing portion 32 on the valve core 3 and the bottom of the driving cavity 21 define a sealing cavity, the sealing cavity is communicated with the sealing balance cavity 22 through the unidirectional flow channel 23 and the time delay channel 24 to form an independent sealed self-circulation system, when a user presses the valve core 3, the valve core 3 moves from the first position to the second position, the through flow channel 11 opens normal water, the flowing medium in the sealing cavity flows into the sealing balance cavity 22 through the unidirectional flow channel 23, the sealing balance cavity 22 is subjected to pressure elastic deformation to accumulate elastic potential energy, at the moment, the user releases the elastic potential energy, the valve core 3 is not pressed any more, the elastic potential energy accumulated in the sealing balance cavity 22 is released, the sealing balance cavity 22 is driven to restore to press the medium in the sealing balance cavity through the time delay channel 24 to flow back into the sealing cavity, so as to push the valve core 3 to return to the first position, the through the first sealing portion 31 seals the through the unidirectional flow channel 23, and the valve core 11 is closed. As above, the delay channel 24 controls the flow of the medium to be at a smaller level, so that the medium slowly flows to realize a delay function, the whole working process of the delay valve 1000 is realized by the internal circulation of the cavity structure 2, no running water is needed, the working process of the delay valve 1000 is not influenced by the fluctuation of the running water pressure, dirt impurities in the running water can not enter the cavity structure 2, the influence of dirt accumulation on the service life of the delay valve 1000 is slowed down, the stable use requirement of the delay valve 1000 is met, and the use Shu Zao sense of the delay valve 1000 is improved.

Further, the seal balance chamber 22 is disposed in the inner cavity of the valve core 3, and is communicated with the driving chamber 21 through an opening 321 located on the second seal portion 32, and a one-way valve structure 231 is disposed at the opening 321 to form the one-way flow channel 23. The setting position of the seal balance cavity 22 is not limited, and can be adjusted according to the actual product requirement, so that the elastic deformation performance of the seal balance cavity can be ensured, and the functions can be realized. In this embodiment, an inner cavity is formed in the valve core 3, and the seal balance cavity 22 is disposed in the valve core 3, so that the seal balance cavity 22 is integrated with the valve core 3, the volume of the time delay valve 1000 is reduced, and meanwhile, an opening 321 is formed in the second seal portion 32, so that the seal balance cavity 22 is communicated with the driving cavity 21, and the structure is ingenious.

Specifically, the check valve structure 231 includes a gasket 2311 disposed at the opening 321, and an elastic structure 2312 for resetting the gasket 2311, the gasket 2311 having a closed state for sealing the opening 321 and an open state for opening the opening 321, the elastic structure 2312 being used to maintain the closed state of the gasket 2311. The opening 321 has a first side facing the seal balancing cavity 22, the sealing pad 2311 is disposed on the first side, the elastic structure 2312 is configured to maintain the sealing pad 2311 to be covered on the opening 321 to realize sealing, so that the sealing pad 2311 is not required to be in sliding fit with the opening 321, and only has a sealing state of propping against the opening 321 to seal and an opening state of being away from the opening 321, so that the movement of the sealing pad 2311 is not subjected to other forces except the pressure given by a medium and the elastic force given by the elastic structure 2312, and the sealing pad 2311 is simple to be used and stable in stress. In addition, a detachable mounting structure is disposed at the bottom of the second sealing portion 32, the opening 321 is disposed on the mounting structure, the outer peripheral dimension of the mounting structure is larger than the dimension of the sealing pad 2311, the dimension of the opening 321 on the mounting structure is smaller than the dimension of the sealing pad 2311, when the sealing pad 2311 is mounted, the elastic structure 2312 is preferentially disposed in the valve core 3, the elastic structure 2312 is configured as a spring, the sealing pad 2311 is disposed in the valve core 3, so that one end of the elastic structure 2312 abuts against the inner cavity wall of the valve core 3, the other end abuts against the sealing pad 2311, and the mounting structure is mounted on the valve core 3, so that the mounting structure abuts against the sealing pad 2311 inwards and compresses the elastic structure 2312, so that the sealing pad 2311 tightly covers the opening 321, and is convenient to mount the sealing pad 2311 on the first side of the valve core 3.

Further, a flow channel 241 is formed on the sealing pad 2311 to communicate the driving chamber 21 and the sealing balance chamber 22, and the flow channel 241 forms the delay channel 24. The position of the delay passage 24 is not limited either, and the drive chamber 21 and the seal balance chamber 22 can be actually connected, in this embodiment, the seal 2311 is provided with the flow channel 241 to form the delay passage 24, and compared with the case 3 in which the second seal 32 is provided with a through hole to form the delay passage 24, on the one hand, the seal 2311 is more convenient to process the flow channel 241; on the other hand, the delay passage 24 is disposed on the sealing pad 2311, so that an open area avoiding the sealing pad 2311 is not required to be reserved on the valve core 3, the volume of the valve core 3 is reduced, the sealing pad 2311 is integrated with the delay passage 24, and the valve core is ingenious in overall structure and high in practicability.

Furthermore, the inner cavity of the valve core 3 is provided with a piston 33 elastically connected with the cavity wall, and the piston 33 is sealed with the inner cavity of the valve core 3 to define the sealed balance cavity 22. The seal balance cavity 22 may be an elastic liquid bag structure disposed in the inner cavity of the valve core 3, and an elastic extrusion structure may be disposed in the inner cavity of the valve core 3 to assist in accumulating and releasing elastic potential energy by stretching and contracting the bag wall, so that the function of the seal balance cavity 22 can be achieved, but the structure is obviously complicated, and the seal balance cavity 22 is defined by disposing the piston 33 in the inner cavity of the valve core 3 and by disposing an elastic member on a side of the piston 33 facing away from the seal balance cavity 22 to support and connect the piston 33 and the inner cavity wall of the valve core 3, so that balance control of the pressure in the seal balance cavity 22 is achieved along with accumulation and release of the elastic potential energy of the elastic member in the moving stroke of the piston 33, thereby meeting the use requirement.

Further, a mounting hole 34 is formed in an end portion of one end of the valve core 3 extending from the valve body 1, an adjusting stop block 35 extending into an inner cavity of the valve core 3 is mounted at the mounting hole 34, the depth of the adjusting stop block 35 extending into the valve core 3 is adjustable, and the piston 33 is elastically connected with the adjusting stop block 35. The valve core 3 is provided with the adjusting stop block 35 which can be adjusted to extend into the depth of the inner cavity of the valve core 3, elastic abutting is realized by arranging an elastic piece between the adjusting stop block 35 and the piston 33, the depth of the adjusting stop block 35 extending into the inner cavity of the valve core 3 is adjusted on the basis of a certain self-circulation medium volume in the cavity structure 2, the compression degree of the elastic piece can be adjusted to adjust the initial pressure in the sealing balance cavity 22, so that on one hand, the force required by a user to press the valve core 3 can be adjusted when the valve core is used, different user groups can be further satisfied, and the applicability is stronger; on the other hand, the assembly of the time delay valve 1000 is convenient, the assembly of the time delay valve 1000 can be completed under the condition of smaller pressure in the sealed balance cavity 22, the operation is convenient, and the regulating stop block 35 is regulated during use, so that the normal use pressure requirement is met.

Furthermore, the side wall of the valve body 1 is provided with a water inlet 12 and a water outlet 13 at intervals to form a through-flow channel 11 flowing through the valve body 1, the valve core 3 is positioned at the first position, and the first sealing part 31 seals at least one of the water inlet 12 and the water outlet 13. The through-flow channel 11 may be a flexible pipe disposed in the valve body 1, the first sealing portion 31 is used for extruding the flexible pipe to seal the through-flow channel 11, but the number of parts is large, the stability of the delay valve 1000 in use is poor, in this embodiment, the water inlet 12 and the water outlet 13 are directly disposed on the side wall of the valve body 1, the water inlet 12 and the water outlet 13 are communicated through the inner cavity of the valve body 1 to form the through-flow channel 11, and one of the water inlet 12 and the water outlet 13 is plugged by the first sealing portion 31 to seal the through-flow channel 11, the through-flow channel 11 is formed by the structure of the valve body 1, and the parts are less and stable.

Further, a limiting stopper 14 is disposed at a position of the valve body 1 between the water inlet 12 and the water outlet 13, and the first sealing portion 31 is slidably abutted against the limiting stopper 14 to define the first position. The water inlet 12 and the water outlet 13 are arranged at intervals along the moving direction of the valve core 3, the limiting baffle 14 is arranged between the water inlet 12 and the water outlet 13, and the sealing of the first sealing part 31 and the driving cavity 21, namely the sealing of the overflow channel 11 is realized through the tight abutting of the first sealing part 31 and the limiting baffle 14. So arranged, on the one hand, the first sealing part 31 is not required to be provided with a structure for completely sealing the water inlet 12 or the water outlet 13, and the freedom of structural design is large; on the other hand, if the side portion of the first sealing portion 31 completely seals the water inlet 12 or the water outlet 13, the sealing pressure is only provided by the sealing ring between the sealing ring and the side wall of the valve body 1, the sealing effect is unreliable, and after the sealing ring is aged after long-term use, water leakage exists, so that the use experience is poor; in still another aspect, the force of the first sealing portion 31 against the limiting stopper 14 comes from the pressure in the driving cavity 21, that is, from the pressure in the sealing balance cavity 22, and the pressure in the sealing balance cavity 22 is adjustable as described above, so that the force of the first sealing portion 31 against the limiting stopper 14 can be adjusted to meet the sealing requirement, and meanwhile, the first sealing portion 31 can be fixed at the first position, so that the valve core 3 is prevented from moving when the time delay valve 1000 is not used, and the stability is stronger.

Further, the limiting stopper 14 is detachably disposed, and a support structure 15 is disposed between a side of the limiting stopper 14 facing away from the first sealing portion 31 and the valve body 1. In order to facilitate the first sealing portion 31 to pass over the limit stopper 14 and be mounted in the driving cavity 21, the limit stopper 14 is configured to be a detachable structure, on this basis, the first sealing portion 31 is prevented from abutting against the limit stopper 14 to push the limit stopper 14 to move, so as to affect the use effect, one side of the limit stopper 14, which is opposite to the first sealing portion 31, is provided with the supporting structure 15, and the supporting structure 15 is clamped between the valve body 1 and the limit stopper 14 so as to abut against the limit stopper 14, so that the movement of the limit stopper 14 is avoided, and the problem is solved. Specifically, an inwardly contracted step portion is disposed in the valve body 1 corresponding to a position of the limiting stopper 14 facing the first sealing portion 31, that is, the limiting stopper 14 is clamped and fixed with the supporting structure 15 through the step portion, so that stability is strong.

In addition, a through hole 16 is formed at one end of the valve body 1, the size of the through hole 16 is equal to or greater than that of the first sealing portion 31, a sealing collar 17 is detachably disposed at the through hole 16, and the sealing collar 17 is sleeved on the valve core 3. In order to facilitate the valve core 3 to be installed in the valve body 1, one end of the valve body 1 is provided with the through hole 16, the size of the through hole 16 is larger than or equal to the size of the first sealing part 31, the valve core 3 can extend into the valve body 1 from the through hole 16 to be installed, the operation is convenient, the sealing effect of the valve body 1 is ensured, the sealing lantern ring 17 is detachably arranged at the through hole 16, the inner side of the sealing lantern ring 17 is sleeved on the valve core 3, the outer side of the sealing lantern ring 17 is propped against the hole wall of the through hole 16, and the sealing at the two sides of the sealing lantern ring is realized through the sealing ring arranged at the inner side and the outer side of the sealing lantern ring 17. Specifically, the valve core 3 may be installed by pre-installing the limiting stopper 14 and the sealing collar 17 on the valve core 3, that is, all the limiting stopper 14 and the sealing collar 17 are sleeved on the valve core 3, and the supporting structure 15 is disposed between the limiting stopper 14 and the sealing collar 17, so as to complete pre-installation of a valve core assembly, and at this time, the valve core 3 assembly is put into the valve body 1 and pressed to the sealing collar 17 for sealing in place, so as to complete assembly of the time delay valve 1000. Specifically, in this embodiment, in order to facilitate the setting of the supporting structure 15, the supporting structure 15 is set to a clamp spring, which can be clamped from one side of the valve core 3 to the valve core 3, so that the installation is simple, and a plurality of notches are formed on the clamp spring, so as to avoid blocking the flow passage 11.

The utility model also provides a water outlet device, which comprises the time delay valve 1000, and the specific structure of the time delay valve 1000 refers to the embodiment. Because the water outlet device adopts all the technical schemes of all the embodiments, the water outlet device has at least all the beneficial effects brought by the technical schemes of the embodiments, and the description is omitted herein.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (11)

1. A time delay valve, comprising:

a valve body provided with an overcurrent passage;

the cavity structure is positioned in the valve body and comprises a driving cavity and a sealing balance cavity, a unidirectional flow passage and a delay passage are arranged between the driving cavity and the sealing balance cavity, the flow direction of the unidirectional flow passage is from the driving cavity to the sealing balance cavity, and the sealing balance cavity is arranged to be elastically deformed with the change of the pressure of the inner cavity; the method comprises the steps of,

the valve core is provided with a first sealing part and a second sealing part, the valve core is movably arranged on the valve body, one end of the valve core extends out of one end of the valve body, the first sealing part is in sealing and sliding fit with the driving cavity, the valve core is provided with a first position and a second position on the moving stroke of the valve core, when the valve core is in the first position, the first sealing part seals the flow passage, the volume of a sealing cavity defined by the second sealing part and the driving cavity is v1, when the valve core is in the second position, the first sealing part opens the flow passage, and the volume of a sealing cavity defined by the second sealing part and the driving cavity is v2, and v1 is larger than v2.

2. The delay valve of claim 1 wherein said seal balance chamber is disposed within said spool interior and communicates with said drive chamber through an opening in said second seal portion, said opening being provided with a one-way valve structure to form said one-way flow path.

3. The time delay valve of claim 2 wherein said one-way valve structure comprises a gasket disposed at said opening, said gasket having a closed condition sealing said opening and an open condition opening said opening, and an elastic structure resetting said gasket, said elastic structure being used to maintain said closed condition of said gasket.

4. A time delay valve as recited in claim 3, wherein said gasket defines a flow passage communicating said drive chamber with said sealed balance chamber, said flow passage defining said time delay passage.

5. The time delay valve of claim 2 wherein the inner cavity of the valve spool is provided with a piston resiliently coupled to the cavity wall, the piston sealing with the inner cavity of the valve spool to define the sealed balance cavity.

6. The time delay valve of claim 5 wherein a mounting hole is formed in the end of the valve core extending from the valve body, an adjusting stop extending into the inner cavity of the valve core is mounted at the mounting hole, the depth of the adjusting stop extending into the valve core is adjustable, and the piston is elastically connected with the adjusting stop.

7. The time delay valve of claim 1 wherein said valve body sidewall is provided with a water inlet and a water outlet spaced apart to form a flow passage through said valve body, said valve spool in said first position, said first seal sealing at least one of said water inlet and said water outlet.

8. The time delay valve of claim 7 wherein said valve body is provided with a stop member at a location between said water inlet and said water outlet, said first seal portion slidably abutting said stop member to define said first position.

9. The time delay valve of claim 8 wherein said stop is removably disposed and a support structure is disposed between a side of said stop facing away from said first seal and said valve body.

10. The time delay valve of claim 1 wherein a via is provided at one end of the valve body, the size of the via is equal to or greater than the size of the first sealing portion, and a sealing collar is removably provided at the via, the sealing collar being sleeved on the valve core.

11. A water outlet device comprising a time delay valve according to any one of claims 1 to 10.