CN209975643U - Water inlet delaying mechanism - Google Patents

Abstract

The utility model relates to a mechanism of intaking delays relates to water intaking valve technical field, include: the water inlet valve is controlled to be opened by external force, and the delay assembly acts on the water inlet valve and is used for delaying the closing of the water inlet valve when the water inlet valve is controlled to be opened by external force. The utility model discloses simple structure, the reliability is high, realizes behind the water intaking valve stagnant water through the time delay subassembly of extra setting, can make the water intaking valve provide the intaking of longer time (≧ 1S) under the external force drive, and does not influence the stagnant water performance of itself.

Description

Water inlet delaying mechanism

Technical Field

The utility model relates to a water intaking valve technical field especially relates to a postpone mechanism of intaking.

Background

A water inlet valve in the existing toilet bowl product is connected with a lifting rod through a floating barrel, after the water inlet valve stops water, the floating barrel of the water inlet valve is pressed to open the water inlet valve, the floating barrel floats upwards under the action of buoyancy, a sealing assembly is driven to close a pressure relief port of the water inlet valve, and the water inlet valve stops water.

Because the toilet bowl is more and more intelligent, some control assemblies in the water tank of the toilet bowl can be controlled by hydraulic pressure, when the hydraulic pressure is used for controlling, a water inlet valve is needed to supply water for the water tank, but the existing water inlet valve cannot supply water for a long time (more than or equal to 1S) after water stopping, and therefore the existing water inlet valve needs to be improved.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention is directed to a delayed water inlet mechanism, which utilizes an additional delay assembly to realize water inlet valve water stop, and can make the water inlet valve provide water inlet for a long time (more than or equal to 1S) under the external force driving, so as to provide enough energy for the device using the water inlet valve water source as energy.

The specific scheme is as follows:

a delayed water entry mechanism comprising: the water inlet valve is controlled to be opened by external force, and the delay assembly acts on the water inlet valve and is used for delaying the closing of the water inlet valve when the water inlet valve is controlled to be opened by external force.

Further, the fill valve includes a valve portion, a seal, and a water level control assembly.

The valve part includes a pressure release mouth, the sealing member is used for sealing the pressure release mouth, water level control subassembly drives the sealing member action is set for the sealing member with the pressure release mouth carries out sealed complex position and is sealed the position, the sealing member with the position that the pressure release mouth separates is the pressure release position, water level control subassembly includes the body and the sealing member control mechanism who is connected with the body, is configured into: when the floating body is in a high water level, the sealing element control mechanism drives the sealing element to be in a sealing position to enable the water inlet valve to stop water, and when the floating body is in a low water level, the sealing element control mechanism drives the sealing element to be in a pressure relief position to enable the water inlet valve to enter water.

The time-delay assembly acts on the floating body, and after the floating body moves from the high water level to the low water level under the action of external force, the time-delay assembly generates an acting force opposite to buoyancy on the floating body, so that the floating body slowly returns from the low water level to the high water level, and the pressure relief opening of the water inlet valve is sealed in a time-delay mode.

Furthermore, the sealing element control mechanism comprises a rod piece and a control assembly, wherein the rod piece is fixedly connected with the floating body, the rod piece fluctuates up and down according to the water level of the floating body, one end of the control assembly is connected with the rod piece, the other end of the control assembly is connected with the sealing element, and the control assembly is an action driving mechanism which converts the fluctuation of the rod piece into the driving of the sealing element to change the position.

Furthermore, the control assembly is a lever driving mechanism and comprises a pivoting support and a swing rod, the pivoting support and the water inlet valve are relatively fixed, one end of the swing rod is connected to the rod piece, the other end of the swing rod is fixedly connected to the sealing piece, and the middle end of the swing rod is pivoted to the pivoting support.

Furthermore, the control assembly is a multi-link driving mechanism and comprises at least one support and a multi-link action unit, the support and the water inlet valve are relatively fixed, one end of the multi-link action unit is connected to the rod piece, and the other end of the multi-link action unit is fixedly connected to the sealing piece and is fixed through the support.

Furthermore, the rod piece and the floating body are fixedly connected in a relative position adjustable mode.

Furthermore, the time delay assembly comprises a cavity and a cavity adjusting assembly connected with the water level control assembly, the cavity comprises an inner cavity and a first through hole communicated with the inner cavity and the outside, and the cavity adjusting assembly can change the size of the inner cavity when the floating body moves from a high water level to a low water level under the action of external force.

Furthermore, the cavity of the time delay assembly is a telescopic time delay bag, the time delay bag comprises a first end and a second end, the first end is provided with the first through hole, the cavity adjusting assembly comprises a first connecting piece, a movable core and a fixed core, the fixed core is arranged in the time delay bag and is fixedly connected with the second end of the time delay bag, the movable core is a hollow cylinder body, the movable core is sleeved on the fixed core to form clearance fit, the movable core penetrates through the first through hole to stretch out the time delay bag and is fixedly connected with the time delay bag, the part of the movable core extending out the time delay bag is fixedly connected with the first connecting piece, the movable core is further provided with a communicating port communicating the hollow cylinder body with the outside in the exposed part, and the first connecting piece acts on the rod piece of the sealing piece control mechanism.

Furthermore, the inner diameter of the movable core is gradually reduced from one end close to the first connecting piece to one end far away from the first connecting piece, and the outer diameter of the fixed core is gradually increased from one end close to the first connecting piece to one end far away from the first connecting piece.

Furthermore, the time delay assembly still includes the governing valve, the governing valve includes first cylinder body, first water inlet, first delivery port and first valve clack, first valve clack under the buoyancy can with first delivery port carries out airtight cooperation, first delivery port and time delay bag intercommunication are so that the fluid gets into in the inside cavity of time delay bag from the first delivery port of governing valve.

Furthermore, the cavity of the time delay assembly is a second cylinder body provided with the first through hole, the cavity adjusting assembly comprises a first piston and a first piston rod, the first piston is arranged in the second cylinder body and can reciprocate along the axis, one end of the first piston is fixedly connected to the first piston, the other end of the first piston rod penetrates out of one end, far away from the first through hole, of the second cylinder body, the first piston rod is fixedly connected to the rod piece of the sealing element control mechanism, and the first piston and the second cylinder body form clearance fit.

Further, the inner diameter of the second cylinder body gradually increases from a direction close to the first through hole to a direction away from the first through hole.

Furthermore, the second cylinder body is kept away from the one end of first through-hole still is equipped with the third through-hole, the time delay subassembly still including set up in inside and under the buoyancy effect of second cylinder body can with the third through-hole carries out airtight complex second valve clack.

Furthermore, the cavity of the time delay assembly is a third cylinder body provided with the first through hole, the cavity adjusting assembly comprises a second piston and a second piston rod, the second piston is arranged in the third cylinder body and can reciprocate along the axis, the middle end of the second piston is fixedly connected to the second piston, two ends of the second piston rod penetrate out of two ends of the third cylinder body respectively, and one end, far away from the first through hole, of the second piston rod acts on the rod piece of the sealing element control mechanism.

Further, the inner diameter of the third cylinder body gradually decreases from the direction close to the first through hole to the direction away from the first through hole.

The utility model adopts the technical scheme as above to beneficial effect has:

(1) the water supply device can supply water for a long time (more than or equal to 1S) after the water is stopped by the water inlet valve, and provides enough energy for a device using the water source of the water inlet valve as energy.

(2) The water stopping performance of the water inlet valve is not influenced while the water stopping device has a time delay function.

(3) The structure is simple, and the reliability is high.

Drawings

Fig. 1 is a schematic three-dimensional structure diagram according to a first embodiment of the present invention.

Fig. 2 is an exploded view of a first embodiment of the present invention.

Fig. 3 is a schematic structural diagram of an initial state according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of an embodiment of the present invention during a water inlet process.

Fig. 5 is a schematic structural view illustrating a water level rising to the floating body according to an embodiment of the present invention.

Fig. 6 is a schematic structural view illustrating the water stopping of the water inlet valve according to an embodiment of the present invention.

Fig. 7 is a schematic structural view illustrating a floating body moving to a low water level under an external force according to an embodiment of the present invention.

Fig. 8 is a schematic structural view illustrating the floating body moving to a low water level according to an embodiment of the present invention.

Fig. 9 is a schematic structural view illustrating a floating body slowly rising according to an embodiment of the present invention.

Fig. 10 is a schematic three-dimensional structure diagram of a second embodiment of the present invention.

Fig. 11 is an exploded view of the second embodiment of the present invention.

Fig. 12 is a schematic structural diagram of an embodiment of the present invention in an initial state.

Fig. 13 is a schematic structural view of a second embodiment of the present invention in a water inlet process.

Fig. 14 is a schematic structural view illustrating the second embodiment of the present invention when the water level rises to the floating body.

Fig. 15 is a schematic structural view of the water inlet valve according to the second embodiment of the present invention.

Fig. 16 is a schematic structural view illustrating the floating body moving to a low water level under an external force according to the second embodiment of the present invention.

Fig. 17 is a schematic structural view illustrating the floating body moving to a low water level according to the second embodiment of the present invention.

Fig. 18 is a schematic structural view illustrating a floating body according to a second embodiment of the present invention when the floating body slowly ascends.

Fig. 19 is an exploded schematic view of a third embodiment of the present invention.

Fig. 20 is a schematic structural diagram of a third embodiment of the present invention in an initial state.

Fig. 21 is a schematic structural view of the third embodiment of the present invention when the water is stopped by the water inlet valve.

Fig. 22 is a schematic structural view illustrating the floating body moving to a low water level by an external force according to the third embodiment of the present invention.

Fig. 23 is a schematic structural view illustrating a floating body slowly rising according to a third embodiment of the present invention.

Detailed Description

To further illustrate the embodiments, the present invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. With these references, one of ordinary skill in the art will appreciate other possible embodiments and advantages of the present invention.

The present invention will now be further described with reference to the accompanying drawings and detailed description.

The first embodiment is as follows:

as shown in fig. 1-9, the first embodiment of the present invention provides a mechanism for delaying water inflow, which includes a water inflow valve and a time delay assembly 4, wherein the water inflow valve is a common water inflow valve, and includes a valve portion 1, a sealing member 2 and a water level control assembly 3.

The inlet valve is made of a hard material, and in this embodiment, the inlet valve is used in a toilet tank, and therefore, a corrosion-resistant plastic material is preferably used.

The valve portion 1 includes a pressure relief opening 11, the sealing member 2 is used for sealing the pressure relief opening 11, the sealing member 2 may be a conventional sealing device, in this embodiment, a rubber gasket is used, and other sealing materials may be selected by those skilled in the art.

The water level control assembly 3 drives the sealing element 2 to act, the position of the sealing element 2, which is in sealing fit with the pressure relief opening 11, is set to be a sealing position, the position of the sealing element 2, which is separated from the pressure relief opening 11, is set to be a pressure relief position, and the water level control assembly 3 comprises a floating body 31 and a sealing element control mechanism 32 connected with the floating body 31.

In this embodiment, the sealing member control mechanism 32 includes a rod 321 connected to the floating body 31 and a control assembly, one end of the control assembly is connected to the rod 321, the other end of the control assembly is connected to the sealing member 2, and the control assembly is an action driving mechanism for converting the up-and-down fluctuation of the rod 321 into driving the sealing member 2 to change the position.

The control component may be a conventional mechanical driving mechanism, such as a lever driving mechanism, a link driving mechanism, etc., in this embodiment, a lever driving mechanism is adopted, which includes a pivot bracket 33 and a swing link 322, the position of the pivot bracket 33 and the position of the valve portion 1 are relatively fixed, in this embodiment, the pivot bracket 33 is preferably fixedly disposed on the inlet valve, and those skilled in the art may also fixedly disposed on other devices fixed relative to the valve portion 1. One end of the swing rod 322 is connected to the rod 321, the other end is fixedly connected to the sealing element 2, and the middle end is pivotally connected to the pivot bracket 33.

Since the position of the seal control mechanism 32 is changed by the buoyancy of the floating body 31, the position of the seal control mechanism 32 is preferably changed by changing the buoyancy.

The connection between the floating body 31 and the rod 321 may be a fixed connection with an adjustable relative position, or a fixed connection with a non-adjustable relative position, in this embodiment, a fixed connection with an adjustable relative position is preferably used, specifically, a threaded connection is used, and by the above arrangement, the sealing performance between the sealing element 2 and the pressure relief opening 11 can be adjusted by adjusting the relative position between the floating body 31 and the rod 321.

In this embodiment, the rod member 321 may serve as a carrier for applying an external force to the floating body 31, and the floating body 31 may be moved from a high water level to a low water level by pressing the rod member 321. Other devices can be additionally arranged by those skilled in the art to control the floating body 31 to move from the high water level to the low water level, for example, a hanging rope is connected to the lower end of the floating body 31, a pulley is fixedly arranged below the water tank, the hanging rope is wound around the pulley, and the floating body 31 can be moved from the high water level to the low water level by pulling the hanging rope.

The floating body is made of common floating body materials, in the embodiment, the floating body is a hollow plastic cylinder body, and other materials and shapes can be adopted by the technical personnel in the field.

In this embodiment, when the floating body 31 is at a high water level, the sealing element control mechanism 32 drives the sealing element 2 to be at a sealing position to stop the water in the water inlet valve, and when the floating body 31 is at a low water level, the sealing element control mechanism 32 drives the sealing element 2 to be at a pressure relief position to stop the water in the water inlet valve.

The floating body 31 reciprocates in a direction perpendicular to the water surface during the movement process, so that the sealing performance of the sealing element 2 is prevented from being influenced by the change of the direction of the floating body 31 during the movement process, in the embodiment, the sealing device further comprises a limiting bracket 51 fixed relative to the position of the water inlet valve, and in the embodiment, the limiting bracket 51 is fixedly arranged on the water inlet pipe 5 connected with the water inlet valve.

The delay assembly 4 comprises a cavity and a cavity adjusting assembly connected with the water level control assembly 3, the cavity is a telescopic delay bag 41, the delay bag 41 in this embodiment is made of a plastic with certain flexibility and has a wavy shape, a person skilled in the art can also use other shapes or materials to make the telescopic delay bag 41, the delay bag 41 comprises a first end and a second end, the first end is provided with the first through hole 411, the cavity adjusting assembly comprises a first connecting member 42, a movable core 43 and a fixed core 44, the fixed core 44 is arranged in the delay bag 41 and is fixedly connected to the second end of the delay bag 41, the movable core 43 is a hollow cylinder body and is sleeved on the fixed core 44 to form clearance fit, and the movable core 43 passes through the first through hole 411 to extend out of the delay bag 41 and is fixedly connected with the delay bag, the exposed part of the movable core 43 extending out of the delay bag 41 is fixedly connected to the first connecting element 42, the exposed part of the movable core 43 further has a communication port 421 for communicating the hollow cylinder with the outside, and the first connecting element 42 acts on the rod 321 of the sealing element control mechanism 32, in this embodiment, the first connecting element 42 is fixedly connected to the rod 321.

In this embodiment, the water in the water tank enters the cavity of the movable core 43 through the communication port 421, and further enters the inner cavity of the delay pocket 41 through the fit gap between the movable core 43 and the fixed core 44.

In this embodiment, it is preferable that the inner diameter of the movable core 43 is gradually decreased from the end close to the first connector to the end far from the first connector, and the outer diameter of the fixed core 44 is gradually increased from the end close to the first connector to the end far from the first connector. The small gap in the front can provide enough delay time, and the large gap in the back can prevent the water from being stopped by the water inlet valve from being influenced by the time delay assembly 4, so that the water can be stopped quickly.

In order to better control the speed of the water flow in the internal cavity without affecting the speed of the floating body 31 moving in other processes, in this embodiment, the delay assembly 4 further includes a regulating valve 45, the regulating valve 45 includes a first cylinder body 451, a first water inlet 452, a first water outlet 453 and a first flap 454, the first flap 454 can be hermetically matched with the first water outlet 453 under the effect of buoyancy, and the first water outlet 453 is communicated with the delay bag 41 to enable the fluid to enter the internal cavity of the delay bag 41 from the first water outlet 453 of the regulating valve 45.

In this embodiment, the cavity adjusting assembly can reduce the size of the internal cavity when the floating body 31 moves from a high water level to a low water level under the action of external force.

In this embodiment, the second end of the delay bag 41 and the adjusting valve 45 need to be fixed relative to the position of the water inlet valve, and in this embodiment, the delay bag further includes a fixing bracket 52 fixed relative to the position of the water inlet valve, and the fixing bracket 52 is fixedly disposed on the water inlet pipe 5 connected to the water inlet valve.

In order to facilitate the fixing of the delay assembly 4, the delay assembly further includes a fixing bracket 52 sleeved on the water inlet pipe 5, and the regulating valve 45 is fixed with the water inlet pipe 5 through the fixing bracket 52. The time delay assembly 4 may also be fixed in other ways by a person skilled in the art, for example to the bottom of the tank.

The working process of this embodiment comprises the following steps:

(1) as shown in fig. 3, the initial state: the tank level is below the regulating valve 45, so the first flap 454 of the regulating valve 45 is lowered under gravity, the regulating valve 45 is in an open state, the floating body 31 is at a low level, the sealing element 2 is separated from the pressure relief port 11, and the inlet valve starts to admit water.

(2) As shown in fig. 4, when the tank water level rises above the regulating valve 45 and below the float 31 during the water inflow, the first valve flap 454 of the regulating valve 45 rises to be in close engagement with the first water outlet 453, and the regulating valve 45 is closed.

(3) As shown in fig. 5, the water level continuously rises to the floating body 31, when the buoyancy of the floating body 31 is greater than the gravity, the floating body 31 moves to the high level, the sealing member 2 is driven to move from the pressure relief position to the sealing position, the rod member 321 rises, the first connecting member 42 and the movable core 43 are driven to move upwards, the delay bag 41 is stretched, and the water enters the delay bag 41 from the communication port 421 of the first connecting member 42.

(4) As shown in FIG. 6, the floating body 31 rises to a high level, and drives the sealing member 2 to move to a sealing position, and the water inlet valve stops water.

(5) As shown in fig. 7, the rod 321 is pressed to move downward to drive the floating body 31 to move to a low water level, the sealing member 2 is driven to move from a sealing position to a pressure relief position, the water inlet valve feeds water to drive the first connecting member 42 and the movable core 43 to move downward, the delay bag 41 is compressed, the control valve 45 opens rapidly because the pressure in the delay bag 41 is greater than the buoyancy force applied to the first valve flap 454 of the control valve 45, and the water in the delay bag 41 passes through the first water outlet 453 of the control valve 45 and then is discharged from the first water inlet 452.

(6) As shown in fig. 8, rod 321 is moved to the lowermost position, float 31 is at a low water level, and the seal assembly is in a pressure relief position.

(7) As shown in fig. 9, after the pressing is finished, the first valve flap 454 of the regulating valve 45 moves upwards under the action of buoyancy to be in close fit with the first water outlet 453, so that the regulating valve 45 is closed, the buoyancy of the floating body 31 is larger than the gravity to move towards a high water level, the sealing member 2 is driven to move from a pressure release position to a sealing position, the rod 321 rises to drive the connecting member and the movable core 43 to move upwards, the delay bag 41 is stretched, and at this time, only the communication port 421 at the first connecting member 42 of the delay bag 41 can be filled with water, so that the stretching of the delay bag 41 is prevented under the action of negative pressure, a downward acting force is applied to the floating body 31, the rising process of the floating body 31 is delayed, the process of the sealing member 2 moving from the pressure release position to the sealing position is also delayed, the water inlet valve can keep a longer water inlet time until the sealing member, the inlet valve enters the next working cycle.

Example two:

as shown in fig. 10 to 18, a second embodiment of the present invention provides a water inlet delaying mechanism, which includes a water inlet valve and a time delay assembly 4, wherein the water inlet valve includes a valve portion 1, a sealing member 2 and a water level control assembly 3.

The valve portion 1 includes a pressure relief opening 11, the sealing member 2 is used for sealing the pressure relief opening 11, and the sealing member 2 may be a conventional sealing device, in this embodiment, a rubber gasket is used.

The water level control assembly 3 drives the sealing element 2 to act, the position of the sealing element 2, which is in sealing fit with the pressure relief opening 11, is set to be a sealing position, the position of the sealing element 2, which is separated from the pressure relief opening 11, is set to be a pressure relief position, and the water level control assembly 3 comprises a floating body 31 and a sealing element control mechanism 32 connected with the floating body 31.

In this embodiment, the sealing member control mechanism 32 includes a rod 321 connected to the floating body 31 and a control assembly, one end of the control assembly is connected to the rod 321, the other end of the control assembly is connected to the sealing member 2, and the control assembly is an action driving mechanism for converting the up-and-down fluctuation of the rod 321 into driving the sealing member 2 to change the position.

The control assembly may be a common mechanical driving mechanism, such as a lever driving mechanism, a link driving mechanism, and the like, the multi-lever driving mechanism includes at least one bracket and a multi-link actuating unit, the bracket is fixed relative to the valve portion 1, one end of the multi-link actuating unit is connected to the rod 321, and the other end of the multi-link actuating unit is fixedly connected to the sealing member 2 and fixed by the bracket.

The two-link driving mechanism adopted in this embodiment includes two link brackets 34, a first connecting rod 323 and a second connecting rod 324, the first connecting rod 323 and the second connecting rod 324 are hinged to each other, one end of the first connecting rod 323 is connected to the rod member 321, one end of the second connecting rod 324 is fixedly connected to the sealing member 2, the two link brackets 34 are pivoted to the middle end of the second connecting rod 324, and the two link brackets 34 are fixedly connected to the valve portion 1.

In this embodiment, when the floating body 31 is at a high water level, the sealing element control mechanism 32 drives the sealing element 2 to be at a sealing position to stop the water in the water inlet valve, and when the floating body 31 is at a low water level, the sealing element control mechanism 32 drives the sealing element 2 to be at a pressure relief position to stop the water in the water inlet valve.

The time delay assembly 4 comprises a cavity and a cavity adjusting assembly connected with the water level control assembly 3, the cavity is a second cylinder 46 provided with the first through hole 411, the cavity adjusting assembly comprises a first piston 471 arranged inside the second cylinder 46 and capable of reciprocating along an axis, and a first piston rod 472 with one end fixedly connected to the first piston 471 and the other end penetrating out from one end of the second cylinder 46 far away from the first through hole 411, the first piston rod 472 is fixedly connected to the rod 321 of the water level control assembly 3, an inner cavity is formed between the end of the second cylinder 46 far from the first through hole 411 and the first plunger 471, the first plunger 471 and the second cylinder 46 form a clearance fit, and water flows into the inner cavity from the fit clearance between the first plunger 471 and the second cylinder 46 after entering from the first through hole 411.

In this embodiment, it is preferable to set the inner diameter of the second cylinder 46 to gradually increase from a direction close to the first through hole 411 to a direction away from the first through hole 411. The small gap in the front can provide enough delay time, and the large gap in the back can prevent the water from being stopped by the water inlet valve from being influenced by the time delay assembly 4, so that the water can be stopped quickly.

In order to better control the speed of water flow in the internal cavity and not affect the moving speed of the floating body 31 in other processes, in this embodiment, the second cylinder 46 further includes a second valve flap 462 disposed in the second cylinder 46 and capable of being hermetically matched with the third through hole 461 under the action of buoyancy, and the second through hole 411 is disposed at a position away from the first through hole 411.

In this embodiment, the cavity adjusting assembly can increase the size of the internal cavity when the floating body 31 moves from a high water level to a low water level under the action of external force.

The working process of this embodiment comprises the following steps:

(1) as shown in fig. 12, the initial state: the tank level is below the second valve flap 462, so the second valve flap 462 descends under the gravity to conduct the third through hole 461, the floating body 31 is at a low level, the sealing member 2 is separated from the pressure relief port 11, and the inlet valve starts to feed water.

(2) As shown in fig. 13, when the water level of the tank rises above the second cylinder 46 and below the floating body 31 during the water inlet process, the second valve flap 462 rises to be hermetically fitted with the third through hole 461, and the third through hole 461 is closed.

(3) As shown in fig. 14, the water level continuously rises to the floating body 31, when the buoyancy of the floating body 31 is greater than gravity, the floating body 31 moves towards the high water level, the sealing member 2 is driven to move from the pressure relief position to the sealing position, the rod member 321 rises, the first piston 471 rod and the first piston 471 are driven to move upwards, and the water in the cavity is discharged from the matching gap between the first piston 471 and the second cylinder 46 through the first through hole 411.

(4) As shown in fig. 15, the floating body 31 rises to a high level, and drives the sealing member 2 to move to a sealing position, and the water inlet valve stops water.

(5) As shown in fig. 16, the rod 321 is pressed to move downward to drive the floating body 31 to move to a low water level, the sealing element 2 is driven to move from a sealing position to a pressure release position, the water inlet valve feeds water to drive the rod 471 of the first piston and the rod 471 to move downward, the internal cavity of the second cylinder 46 is enlarged, the acting force of the air negative pressure on the second valve flap 462 is greater than the buoyancy force, the second valve flap 462 moves downward, the third through hole 461 is rapidly opened, and water enters the internal cavity through the third through hole 461.

(6) As shown in fig. 17, rod 321 is moved to the lowermost position, float 31 is at a low water level and seal 2 is in a pressure relief position.

(7) As shown in fig. 18, after the pressing operation is finished, the internal cavity is filled with water, the second valve flap 462 does not have negative pressure, the second valve flap 462 moves upward under the action of buoyancy to be in sealing fit with the third through hole 461, so that the second valve flap is closed, the buoyancy of the floating body 31 is greater than the gravity and moves to a high water level, the sealing member 2 is driven to move from a pressure release position to a sealing position, the rod 321 rises to drive the first piston 471 rod and the first piston 471 to move upward, the internal cavity becomes smaller, because the internal cavity is connected with the water inlet channel of the first through hole 411 only through the fit clearance between the first piston 471 and the second cylinder 46 at this time, the first piston 471 is pulled upward by a downward resistance, the rising process of the floating body 31 is delayed, the process of the sealing member 2 moving from the pressure release position to the sealing position is also delayed, and a long water inlet valve can be maintained, when the seal assembly is moved to the sealing position, the inlet valve stops, and when the water level drops again, the inlet valve enters the next working cycle.

Example three:

as shown in fig. 19 to 23, a third embodiment of the present invention provides a water inlet valve with a water stopping delay function, which has a substantially same structure as that provided in the second embodiment, and the difference is that, in this embodiment, the delay assembly 4 includes: the cavity of the delay assembly 4 is a third cylinder 48 having the first through hole 411 disposed thereon, the cavity adjusting assembly includes a second piston 491 disposed inside the third cylinder 48 and capable of reciprocating along an axis, and a middle portion fixedly connected to the second piston 491, two ends of the second piston 492 respectively penetrate through two ends of the third cylinder 48, one end of the second piston 492 far away from the first through hole 411 is connected to the rod 321 of the water level control assembly 3, and an inner cavity is formed by the second piston 491 and one end of the third cylinder 48 near the first through hole 411.

In this embodiment, it is preferable that the inner diameter of the third cylinder 48 is gradually reduced from a direction close to the first through hole 411 to a direction away from the first through hole 411. The small gap in the front can provide enough delay time, and the large gap in the back can prevent the water from being stopped by the water inlet valve from being influenced by the time delay assembly 4, so that the water can be stopped quickly.

In this embodiment, the delay assembly 4 is disposed above the water level control assembly 3, the second piston rod 492 is fixedly connected to the rod 321 of the water level control assembly 3, and the size of the inner cavity can be increased by pressing the second piston rod 492, so that the floating body 31 moves from a high water level to a low water level.

In order to facilitate the pressing and fixing of the second piston rod 492, in this embodiment, the delay assembly 4 further includes a button body 61 having a cavity, and a pressing portion 62, the pressing portion 62 is disposed in the cavity and can reciprocate along the axial direction of the button body 61, the third cylinder 48 is fixedly disposed inside the button body 61, one end of the second piston rod 492 is connected to the pressing portion 62, and the other end of the second piston rod 492 passes through the button body 61.

In this embodiment, the cavity adjusting assembly can increase the volume of the internal cavity when the floating body 31 moves from a high water level to a low water level under the action of external force.

The size of the first through hole 411 may control the fluid discharge speed, and thus the delay time. In this embodiment, the fluid is air.

The working process of this embodiment comprises the following steps:

(1) as shown in fig. 20, the initial state: the tank level is below the float 31 so that under gravity the float 31 is at a low level, the seal 2 separates from the pressure relief port 11 and the inlet valve begins to admit water.

(2) As shown in fig. 21, the water level continuously rises to the floating body 31, when the buoyancy of the floating body 31 is greater than the gravity, the floating body 31 moves to the high water level to drive the sealing member 2 to move from the pressure relief position to the sealing position, and when the floating body moves to the sealing position, the water inlet valve stops water.

(3) As shown in fig. 22, the second piston rod 492 and the second piston 491 are moved downward by pressing the pressing portion 62 of the button, the volume of the internal cavity is increased, and air enters the internal cavity from the first through hole 411.

(4) As shown in fig. 23, after the pressing is finished, the internal cavity is filled with air, the floating body 31 moves to a high water level when the buoyancy is larger than the gravity, the sealing member 2 is driven to move from the pressure relief position to the sealing position, the rod 321 rises, the second piston rod 492 and the second piston 491 are driven to move upwards, the internal cavity becomes small, the internal cavity can only exhaust through the first through hole 411 at the moment, and the air exhaust speed is slow because the internal cavity is small, so that the upward movement of the second piston 491 is blocked, the rising process of the floating body 31 is delayed, the process of the sealing member 2 moving from the pressure relief position to the sealing position is also delayed, the water inlet valve can keep a long water inlet time until the sealing member 2 moves to the sealing position, the water stop and inlet valve enters the next working cycle when the water level descends again.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (14)

1. A delayed water entry mechanism, comprising: the delay assembly acts on the water inlet valve and is used for delaying the water inlet valve to be closed when the water inlet valve is controlled to be opened by external force;

the water inlet valve comprises a valve part, a sealing part and a water level control assembly; the valve part includes a pressure release mouth, the sealing member is used for sealing the pressure release mouth, water level control subassembly drives the sealing member action is set for the sealing member with the pressure release mouth carries out sealed complex position and is sealed the position, the sealing member with the position that the pressure release mouth separates is the pressure release position, water level control subassembly includes the body and the sealing member control mechanism who is connected with the body, is configured into: when the floating body is at a high water level, the sealing element control mechanism drives the sealing element to be at a sealing position to enable the water inlet valve to stop water, and when the floating body is at a low water level, the sealing element control mechanism drives the sealing element to be at a pressure relief position to enable the water inlet valve to enter water;

the time-delay assembly acts on the floating body, and after the floating body moves from the high water level to the low water level under the action of external force, the time-delay assembly generates an acting force opposite to buoyancy on the floating body, so that the floating body slowly returns from the low water level to the high water level, and the pressure relief opening of the water inlet valve is sealed in a time-delay mode.

2. The delayed water entry mechanism of claim 1, wherein: the sealing element control mechanism comprises a rod piece and a control assembly, the rod piece is fixedly connected with the floating body, the rod piece fluctuates up and down according to the water level of the floating body, one end of the control assembly is connected with the rod piece, the other end of the control assembly is connected with the sealing element, and the control assembly is an action driving mechanism which converts the fluctuation of the rod piece into the driving of the sealing element to change the position.

3. The delayed water entry mechanism of claim 2, wherein: the control assembly is a lever driving mechanism and comprises a pin joint support and a swing rod, the pin joint support and the water inlet valve are relatively fixed, one end of the swing rod is connected to the rod piece, the other end of the swing rod is fixedly connected to the sealing piece, and the middle end of the swing rod is in pin joint with the pin joint support.

4. The delayed water entry mechanism of claim 2, wherein: the control assembly is a multi-connecting-rod driving mechanism and comprises at least one support and a multi-connecting-rod action unit, the support and the water inlet valve are relatively fixed, one end of the multi-connecting-rod action unit is connected to the rod piece, and the other end of the multi-connecting-rod action unit is fixedly connected to the sealing piece and is fixed through the support.

5. A delayed water inlet mechanism as claimed in claim 2, 3 or 4, wherein: the rod piece and the floating body are fixedly connected in a relative position adjustable mode.

6. The delayed water entry mechanism of claim 2, wherein: the time delay assembly comprises a cavity and a cavity adjusting assembly connected with the water level control assembly, the cavity comprises an inner cavity and a first through hole communicated with the inner cavity and the outside, and the size of the inner cavity can be changed when the floating body moves from a high water level to a low water level under the action of external force by the cavity adjusting assembly.

7. The delayed water entry mechanism of claim 6, wherein: the cavity of time delay subassembly is the telescopic time delay bag, the time delay bag includes first end and second end, and wherein first end is equipped with first through-hole, cavity adjusting part includes first connecting piece, activity core and fixed core, fixed core set up in the time delay bag and fixed connection in the second end of time delay bag, the activity core is the cavity barrel, and its cover is located form clearance fit on the fixed core, the activity core passes first through-hole stretches out time delay bag and fixed connection with it, just the activity core exposes stretches out the part fixed connection of time delay bag in first connecting piece, the activity core still has a intercommunication mouth that leads to cavity barrel and external in exposed part, first connecting piece acts on sealing member control mechanism the member.

8. The delayed water entry mechanism of claim 7, wherein: the inner diameter of the movable core is gradually reduced from one end close to the first connecting piece to one end far away from the first connecting piece, and the outer diameter of the fixed core is gradually increased from one end close to the first connecting piece to one end far away from the first connecting piece.

9. The delayed water entry mechanism of claim 7, wherein: the time delay assembly further comprises a regulating valve, the regulating valve comprises a first cylinder body, a first water inlet, a first water outlet and a first valve clack, the first valve clack can be in close fit with the first water outlet under the action of buoyancy, and the first water outlet is communicated with the time delay bag so that fluid enters the inner cavity of the time delay bag from the first water outlet of the regulating valve.

10. The delayed water entry mechanism of claim 6, wherein: the cavity of the time delay assembly is a second cylinder body provided with the first through hole, the cavity adjusting assembly comprises a first piston and a first piston rod, the first piston is arranged inside the second cylinder body and can reciprocate along an axis, one end of the first piston is fixedly connected to the first piston, the other end of the first piston rod penetrates out of one end, far away from the first through hole, of the second cylinder body, the first piston rod is fixedly connected to the rod piece of the sealing element control mechanism, and the first piston and the second cylinder body form clearance fit.

11. A delayed water inlet mechanism as claimed in claim 10, wherein: the inner diameter of the second cylinder body gradually increases from the direction close to the first through hole to the direction far away from the first through hole.

12. A delayed water inlet mechanism as claimed in claim 10, wherein: the second cylinder body keep away from the one end of first through-hole still is equipped with the third through-hole, the time delay subassembly still including set up in inside the second cylinder body and under the buoyancy can with the third through-hole carries out airtight complex second valve clack.

13. The delayed water entry mechanism of claim 6, wherein: the cavity of the time delay assembly is a third cylinder body provided with the first through hole, the cavity adjusting assembly comprises a second piston and a second piston rod, the second piston is fixedly connected to the second piston, the second piston can reciprocate along the axis, the two ends of the second piston rod penetrate out of the two ends of the third cylinder body respectively, and one end, far away from the first through hole, of the second piston rod acts on the rod piece of the sealing element control mechanism.

14. A delayed water inlet mechanism as claimed in claim 13, wherein: the inner diameter of the third cylinder body is gradually reduced from the direction close to the first through hole to the direction far away from the first through hole.

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