CN217679463U - Time delay drainage system - Google Patents

Abstract

The utility model discloses a time delay drainage system relates to bathroom delayer technical field, a time delay drainage system, including first drain valve and second drain valve, through pipeline intercommunication mechanical delayer between first drain valve second drain valve, first drain valve the second drain valve and separate into a plurality of cavitys through the movable subassembly in the mechanical delayer, be provided with a plurality of rivers passageways in the mechanical delayer, utilize the pressure differential between the different cavitys to promote movable subassembly to remove, utilize the cooperation of rivers passageway and movable subassembly to delay for after first drain valve is opened, through the time delay effect of mechanical delayer, after a period, the second drain valve is opened, and the time difference when leading to the fact first drain valve and second drain valve to wash by water makes holistic washing effect better.

Description

Time-delay drainage system

Technical Field

The utility model relates to a bathroom delay timer technical field, more specifically says, it relates to a time delay drainage system.

Background

The drain valve that has the time delay ware often can be used to among the flushing system in bathroom field, and the use of these time delay ware has mechanical, also has the electromagnetism, but generally only installs on a certain drain valve, need separate one end time self-closing after opening the drain valve, and this is in order to solve behind single drain valve press the bath switch, how the problem that stops after the bath a period for it is more convenient to close the bath.

The Chinese utility model patent with publication number CN207063073U discloses a delayed drainage structure of a drainage valve of a closestool, which comprises a fixed seat provided with a drainage hole and a flap cover capable of moving relative to the fixed seat to open and close the drainage hole, wherein the drainage structure comprises a cylinder body, a pressure rod, a spring and a deflector rod; a control valve is arranged between the pressure rod and the inner wall of the cylinder body, the inner cavity of the cylinder body is divided into a water storage cavity and a water containing cavity through the control valve, the control valve is respectively in an open state or a closed state when the pressure rod slides towards the bottom wall of the cylinder body or slides towards the direction far away from the bottom wall, and the pressure rod is provided with water through holes which can be communicated with the water storage cavity and the water containing cavity; the first spring stores energy when the pressure rod slides towards the bottom wall of the cylinder body; the pressing rod is connected with a shifting rod in a transmission way, the shifting rod is connected with the flap cover in a transmission way, the flap cover is driven to move through the shifting rod to open the drainage hole when the pressing rod slides towards the bottom wall direction of the cylinder body, and the flap cover is driven to reset through the shifting rod to close the drainage hole when the pressing rod resets. It has the following advantages: the functions of quick opening and delayed closing of the drain valve are realized, and the drain valve is reliable and stable.

However, when some squatting pans are used, two drain valves are needed, and when the two drain valves are opened simultaneously for flushing, water is not saved, and the flushing effect is not good.

Therefore, the prior art has larger improvement space.

SUMMERY OF THE UTILITY MODEL

To the technical problem that has now, an object of the utility model is to provide a time delay drainage system for a drainage automatic valve opens the back, and a period of time, another drain valve just opens automatically, and whole cost reduces, and the life-span is longer, does not need the power consumption.

In order to achieve the above purpose, the utility model provides a following technical scheme:

a delayed drainage system comprises a first drainage valve and a second drainage valve, wherein a mechanical delayer is communicated between the first drainage valve and the second drainage valve through a pipeline, the first drainage valve, the second drainage valve and the mechanical delayer are separated into a plurality of cavities through movable components, a plurality of water flow channels are arranged in the mechanical delayer, the first drainage valve is opened to cause the water flow of one cavity in the first drainage valve to be discharged, so that the cavities of the first drainage valve generate pressure difference, and the movable components in the first drainage valve are pushed to move; the movable assembly of the first drain valve is communicated with the atmosphere after moving, so that pressure difference is generated in each cavity in the mechanical delayer, the movable assembly in the mechanical delayer is pushed to reach the position of each water flow channel, water in the mechanical delayer and water in one of the cavities in the second drain valve pass through each water flow channel of the mechanical delayer and are discharged, pressure difference is generated in each cavity of the second drain valve, the movable assembly in the second drain valve is pushed to move, and the second drain valve is opened.

Through adopting above-mentioned technical scheme, utilize the pressure differential between the different cavities to promote the movable subassembly and remove, utilize the cooperation of rivers passageway and movable subassembly to carry out the time delay for after first drain valve is opened, through the time delay effect of time delay ware, after a period, the second drain valve is opened, and the time difference when leading to the fact first drain valve and second drain valve to wash by water, thereby makes holistic washing effect better.

Further, the mechanical time delay unit comprises a front cover and a rear cover, wherein the front cover is provided with a first communicating pipe for communicating with a first drain valve, the rear cover is provided with a second communicating pipe for communicating with a second drain valve, the front cover and the rear cover are in threaded connection to form a first cylindrical cavity, a tubular valve core assembly with one sealed end is installed in the first cylindrical cavity, the tubular valve core assembly can move along the length direction of the first cylindrical cavity, the unsealed end of the tubular valve core assembly faces the front cover, the tubular valve core assembly divides the first cylindrical cavity into a first cavity close to the second communicating pipe and a second cavity close to the first communicating pipe, and a plurality of first water flow channels for guiding water flow from the first cavity into the second cavity are arranged on the inner side face of the rear cover close to the front cover, the non-closed end of the tubular valve element assembly is provided with a plurality of overflowing openings, the overflowing openings are used for water flow to flow into the inner side of the tubular valve element assembly from the second chamber, the inner side face, close to the overflowing openings, of the tubular valve element assembly is inserted with a tubular front cover core, the space between the tubular valve element assembly and the front cover core is a third inner chamber, one end, far away from the tubular valve element assembly, of the front cover core is fixedly connected with the front cover and communicated with the first communicating pipe, the inner side face of the closed end of the tubular valve element assembly is provided with a plurality of second water flow channels used for guiding water flow into the third inner chamber from the second chamber, a water passing channel used for water flow to flow into the third inner chamber from the second chamber is formed between the overflowing openings and the second water flow channels, and the outer side of the tubular valve element assembly is provided with a first spring used for pushing the tubular valve element assembly to approach the second communicating pipe.

By adopting the technical scheme, before the first drain valve is opened, the mechanical delayer is filled with water, after the first drain valve is opened, the first drain valve is communicated with the atmosphere, and because the front cover is provided with the first communication pipe for communicating the first drain valve, the pressure of the second chamber positioned at the front cover is reduced, so that the pressure of the first chamber is greater than that of the second chamber, under the action of the pressure difference, the tubular valve core assembly overcomes the pressure of the elastic piece to move towards the front cover core and compress the inner chamber and the second chamber, in the moving process of the tubular valve core component, the water in the second chamber can also slowly flow into the third inner chamber through the flow-through port and the water-passing channel in sequence, and the water in the third inner chamber flows into the first communicating pipe through the tubular front cover core and further flows into the first drain valve, because the end of the front cover core close to the valve core assembly only contacts the water passing channel when the tubular valve core assembly starts to move, the water flow flows into the inner chamber slowly from the second chamber, so that the bottom surface of the tubular valve core assembly can be close to the front cover core after a period of time, when the tubular valve core component is close to the front cover core, one end of the front cover core close to the valve core component is just positioned at the second water flow channel, the closed end of the tubular valve core component is just positioned at the first water flow channel, and at the moment, water in the second drain valve flows into the first chamber through the second communicating pipe, then sequentially passes through the first water flow channel, the second chamber, the second water flow channel, the third inner chamber, the tubular front cover core and the first communicating pipe and finally flows to the first drain valve, due to the change of the water in the second drain valve, pressure difference is formed between different cavities in the second drain valve, and the second drain valve is opened. So when the first drain valve is opened, need pass through a period of time under the cooperation of the tubulose case subassembly of mechanical delay timer, water channel etc. just can open automatically by the second drain valve, lead to the time difference that first drain valve and second drain valve were opened, so this mechanical delay timer need not use the electricity, and the life-span is longer.

Furthermore, the first drain valve comprises a first drain valve shell and a first valve cover, the first drain valve shell and the first valve cover are in threaded connection to form a second cylindrical cavity, a first cylindrical valve core assembly is installed in the second cylindrical cavity and can move along the length direction of the second cylindrical cavity, the second cylindrical cavity is divided into a third cavity and a fourth cavity by the first valve core assembly, a first water inlet pipe and a first water outlet pipe are arranged on the third cavity, the first water outlet pipe, the first valve core assembly and the second cylindrical cavity are coaxial, the first water inlet pipe is arranged on the side face of the third cavity, a first drain pipe capable of being opened or closed and a third communicating pipe communicated with a mechanical delayer are arranged on one face, far away from the first valve core assembly, of the fourth cavity, and a third water flow channel for water flow flowing from the third cavity to the fourth cavity is formed in the inner side face of the fourth cavity;

before water drainage: the first valve core assembly is close to the first water outlet pipe, and one end, facing the first water outlet pipe, of the first valve core assembly is blocked with the first water outlet pipe;

during drainage: the first valve core assembly moves towards the direction far away from the first water outlet pipe, and the end, facing the first water outlet pipe, of the first valve core assembly leaves the first water outlet pipe.

Through adopting above-mentioned technical scheme, before first bleeder line is opened, all filled up water in third cavity and the fourth cavity, the pressure of third cavity is the same with the pressure of fourth cavity, and the first outlet pipe has just been stopped up to the one end of case subassembly towards first outlet pipe, be in the state before the drainage, after first bleeder line is opened, rivers in the fourth cavity are discharged, pressure in the fourth cavity reduces in the twinkling of an eye, and the third cavity is owing to connect first inlet tube, so the continuous rivers of active get into, make pressure in the third cavity be greater than the pressure in the fourth cavity, thereby promote first case subassembly towards the direction motion of keeping away from first outlet pipe, make the first outlet pipe that is blockked up originally dredge, thereby lead to normally flowing through first outlet pipe from the rivers of first inlet tube, realize the drainage. The valve core assembly is pushed by the pressure difference caused by the water flow discharged, so that the first water inlet pipe is communicated with the first water outlet pipe, the drainage structure is realized, the requirement on air tightness is low, and the manufacturing cost is low.

Furthermore, the second drain valve comprises a second drain valve shell and a second valve cover, the second drain valve shell and the second valve cover are fixedly connected to form a third cylindrical cavity, a cylindrical second valve element assembly is installed in the third cylindrical cavity and can move along the length direction of the third cylindrical cavity, the second valve element assembly divides the third cylindrical cavity into a fifth cavity and a sixth cavity, a second water inlet pipe and a second water outlet pipe are arranged on the fifth cavity, the second water outlet pipe, the second valve element assembly and the third cylindrical cavity are coaxial, the second water inlet pipe is arranged on the side surface of the fifth cavity, a fourth communicating pipe communicated with the mechanical time delay device is arranged on one surface of the sixth cavity far away from the second valve element assembly, and a fourth water flow channel for water flow flowing from the fifth cavity to the sixth cavity is formed in the inner side surface of the sixth cavity;

before water drainage: the second valve core component is close to the second water outlet pipe, and one end, facing the second water outlet pipe, of the second valve core component blocks the second water outlet pipe;

during drainage: the second valve core assembly moves away from the second water outlet pipe, and the second valve core assembly leaves the second water outlet pipe towards one end of the second water outlet pipe.

Through adopting above-mentioned technical scheme, water in the sixth cavity passes through the fourth communicating pipe, the mechanical delay timer flows out the back, pressure in the sixth cavity reduces in the twinkling of an eye, and the fifth cavity is owing to connect the second inlet tube, so there is the continuous rivers entering of source, make pressure in the fifth cavity be greater than the pressure in the sixth cavity, thereby promote first case subassembly towards the direction motion of keeping away from the second outlet pipe, make the second outlet pipe that originally is blockked up dredge, thereby lead to flowing in from the second inlet tube rivers can normally flow through the second outlet pipe, realize the drainage. The valve core assembly is pushed by the pressure difference caused by the water flow discharged, so that the first water inlet pipe is communicated with the first water outlet pipe, the drainage structure is realized, the requirement on air tightness is low, and the manufacturing cost is low.

Further, one end of the second valve spool component facing the second water outlet pipe is provided with a second spring for assisting in separating the second valve spool component from the second water outlet pipe.

Through adopting above-mentioned technical scheme, the setting of second spring makes when second valve core subassembly is towards the direction motion of keeping away from the second outlet pipe, plays supplementary separation effect, further promotes second valve core subassembly and keeps away from the second outlet pipe to dredge the second outlet pipe, make rivers can follow the inflow of second inlet tube, the second outlet pipe flows.

The second valve core assembly comprises a tubular valve core shell with one closed end, a piston is arranged in the second valve core assembly, the piston and the tubular valve core shell are coaxial and can move along the inner side surface of the tubular valve core shell in the length direction of the tubular valve core shell, the closed end of the tubular valve core shell, the inner side surface of the tubular valve core shell and the piston are enclosed to form a first inner chamber, a third spring is arranged in the first inner chamber, one end of the third spring is fixedly connected with the tubular valve core shell, the other end of the third spring is fixedly connected with the piston, a piston rod is fixedly connected to one surface, far away from the closed end of the tubular valve core shell, of the piston, the piston rod and the piston are coaxial, a valve core cover used for blocking the piston and the valve core assembly from being separated is connected to the non-closed end of the tubular valve core shell in a threaded mode, the piston is inserted into the valve core cover, the inner side surface of the tubular valve core shell and the valve core cover are enclosed to form a second inner chamber, and a fifth water flow passage used for guiding water flow from a sixth chamber to the second inner chamber is arranged on the side surface of the piston.

Through adopting above-mentioned technical scheme, second valve element group spare moves towards the direction of keeping away from the outlet pipe during butt joint to the valve gap, because second inlet tube and second outlet pipe are complete intercommunication this moment, water in the second inlet tube can be followed the second outlet pipe completely and flowed out, make the pressure in the fifth cavity reduce, so the left pressure of third spring subtracts down, and on the third spring right side, because the rivers of sixth cavity are discharged, so the pressure on its third spring right side has also reduced, finally lead to the third spring to extend under the effect of restoring force, promote piston and piston rod and move towards the right side, promote the motion of tubulose case shell left side, until stopping up the second outlet pipe, thereby the automatic shutdown second drain valve, stop the drainage.

Compared with the prior art, the beneficial effects of the utility model are that:

1. couple together first drain valve, mechanical delay timer and second drain valve, utilize pressure differential and the rivers passageway that rivers flow to cause and cooperate the movable subassembly for after first drain valve is opened, through the time delay effect of delay timer, after a period, the second drain valve is opened, and the time difference when causing first drain valve and second drain valve to wash by water, thereby makes holistic washing effect better.

2. The first drain valve, the second drain valve and the mechanical delayer can automatically return to the initial state by utilizing the cooperation of the spring and other components.

Drawings

Fig. 1 is an overall sectional view of the present invention;

fig. 2 is an exploded view of the first drain valve of the present invention;

fig. 3 is a cross-sectional view of the first drain valve of the present invention in a closed state;

fig. 4 is a cross-sectional view of the first drain valve of the present invention in an open state;

fig. 5 is an exploded view of the mechanical delayer of the present invention;

fig. 6 is a cross-sectional view of the mechanical retarder in an initial state according to the present invention;

fig. 7 is a cross-sectional view of the mechanical delayer of the present invention in use;

fig. 8 is a cross-sectional view of a tubular spool assembly of the present invention;

fig. 9 is an exploded view of a second drain valve according to the present invention;

fig. 10 is an overall view of another angle of the second valve cover of the present invention;

fig. 11 is a sectional view of the second drain valve according to the present invention in a closed state;

fig. 12 is a sectional view of the second drain valve according to the present invention in an open state.

Reference numerals are as follows: 1. a first drain valve; 2. a second drain valve; 3. a mechanical delayer; 4. a front cover; 5. a rear cover; 6. a first cylindrical cavity; 7. a first communication pipe; 8. a second communicating pipe; 9. a tubular spool assembly; 10. a first chamber; 11. a second chamber; 12. a first water flow passage; 13. a flow-through port; 14. a front cover core; 15. a third inner chamber; 16. a second water flow passage; 17. a water passage; 18. a first spring; 19. a first drain valve housing; 20. a first valve cover; 21. a second cylindrical cavity; 22. a first valve core assembly; 23. a third chamber; 24. a fourth chamber; 25. a first water inlet pipe; 26. a first water outlet pipe; 27. a first bleeder tube; 28. a third communicating pipe; 29. a third water flow channel; 30. a second drain valve housing; 31. a second valve cover; 32. a third cylindrical cavity; 33. a second spool assembly; 34. a fifth chamber; 35. a sixth chamber; 36. a second water inlet pipe; 37. a second water outlet pipe; 38. a fourth communicating pipe; 39. a fourth water flow path; 40. a second spring; 41. a tubular spool housing; 42. a piston; 43. a first inner chamber; 44. a third spring; 45. a piston rod; 46. a valve element cover; 47. a second inner chamber; 48. a fifth water flow channel; 49. a U-shaped ring; 50. a seal ring; 51. and a fourth spring.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Obviously, the described embodiments are preferred embodiments of the invention and should not be considered as excluding other embodiments. Based on the embodiment of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention.

The terms "first," "second," or "third," etc. are used herein to distinguish one object from another, and are not used to describe a particular order.

The directional terms used in the present invention, such as "upper", "lower", "left", "right", etc., are based on the orientation and positional relationship shown in the drawings and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the specific scope of the present invention.

The term "fixed joint" used in the present invention should be understood in a broad sense, that is, in the use process, any connection mode of displacement and relative rotation does not occur between the two.

Referring to fig. 1 to 12, a time-delay drainage system includes a first drainage valve 1 and a second drainage valve 2, a mechanical time delay unit 3 is connected between the first drainage valve 1 and the second drainage valve 2, the first drainage valve 1 includes a first drainage valve housing 19 and a first valve cover 20, the first drainage valve housing 19 is screwed with the first valve cover 20 to form a second cylindrical cavity 21, a first cylindrical valve core assembly 22 is installed in the second cylindrical cavity 21, the first valve core assembly 22 can move along the length direction of the second cylindrical cavity 21, the second cylindrical cavity 21 is divided into a third cavity 23 and a fourth cavity 24 by the first valve core assembly 22, a first water inlet pipe 25 and a first water outlet pipe 26 are arranged on the third cavity 23, the first water outlet pipe 26, the first valve core assembly 22 and the second cylindrical cavity 21 are coaxial, the first water inlet pipe 25 is arranged on a side surface of the third cavity 23, a first drainage pipe 27 capable of being opened or closed and a third drainage pipe 28 communicated with the mechanical time delay unit 3 are arranged on a side surface of the fourth cavity 24 far away from the first valve core assembly 22, and a water flow channel 29 is arranged on an inner side surface of the fourth cavity 24.

The mechanical delayer 3 comprises a front cover 4 and a rear cover 5, the front cover 4 is provided with a first communicating pipe 7 for communicating with the first drain valve 1, the first communicating pipe 7 is connected and communicated with a third communicating pipe 28 of the first drain valve 1, the rear cover 5 is provided with a second communicating pipe 8 for communicating with the second drain valve 2, the front cover 4 and the rear cover 5 are in threaded connection to form a first cylindrical cavity 6, a tubular valve core assembly 9 with one closed end is installed in the first cylindrical cavity 6, the tubular valve core assembly 9 can move along the length direction of the first cylindrical cavity 6, the unsealed end of the tubular valve core assembly 9 faces the front cover 4, the tubular valve core assembly 9 divides the first cylindrical cavity 6 into a first cavity 10 close to the second communicating pipe 8 and a second cavity 11 close to the first communicating pipe 7, a plurality of first water flow channels 12 for guiding water flow from the first cavity 10 to the second cavity 11 are arranged on the inner side surface of the rear cover 5 close to the front cover 4, the unclosed end of the tubular valve core component 9 is provided with a plurality of overflow ports 13, the overflow ports 13 are used for water flow to flow into the inner side of the tubular valve core component 9 from the second chamber 11, the inner side surface of the tubular valve core component 9 close to the overflow ports 13 is inserted with a tubular front cover core 14, the space in front of the tubular valve core component 9 and the front cover core 14 is a third inner chamber 15, one end of the front cover core 14 far away from the tubular valve core component 9 is fixedly connected with the front cover 4 and communicated with the first communicating pipe 7, the inner side surface of the closed end of the tubular valve core component 9 is provided with a plurality of second water flow channels 16 for guiding water flow into the third inner chamber 15 from the second chamber 11, a water passing channel 17 for water flow to flow into the third inner chamber 15 from the second chamber 11 is arranged between the overflow ports 13 and the second water flow channels 16, the outer side of the tubular valve core component 9 is provided with a first spring 18 for pushing the tubular valve core component 9 to approach the second communicating pipe 8, the first spring 18 can make the tubular valve core assembly 9 return to the initial position under the pushing action of the first spring 18 when the pressure returns to the balance.

The second drain valve 2 comprises a second drain valve shell 30 and a second valve cover 31, the second drain valve shell 30 is fixedly connected with the second valve cover 31 to form a third cylindrical cavity 32, a cylindrical second valve core assembly 33 is installed in the third cylindrical cavity 32, the second valve core assembly 33 can move along the length direction of the third cylindrical cavity 32, the third cylindrical cavity 32 is divided into a fifth cavity 34 and a sixth cavity 35 by the second valve core assembly 33, a second water inlet pipe 36 and a second water outlet pipe 37 are arranged on the fifth cavity 34, the second water outlet pipe 37, the second valve core assembly 33 and the third cylindrical cavity 32 are coaxial, the second water inlet pipe 36 is arranged on the side surface of the fifth cavity 34, a fourth communicating pipe 38 communicated with the mechanical delayer 3 is arranged on the surface, far away from the second valve core assembly 33, of the fourth communicating pipe 38 is connected and communicated with the second communicating pipe 8 of the mechanical delayer 3, and a fourth water flow passage 39 for water flow flowing from the fifth cavity 34 to the sixth cavity 35 is arranged on the inner side surface of the sixth cavity 35.

When the first drain valve 1 is in the closed state, the first drain valve 1 and the second drain valve 2 are both in the closed state, that is, the first valve core assembly 22 of the first drain valve 1 is close to the first water outlet pipe 26 and the one end of the first valve core assembly 22 facing the first water outlet pipe 26 blocks up the first water outlet pipe 26, and the second valve core assembly 33 of the second drain valve 2 is close to the second water outlet pipe 37 and the one end of the second valve core assembly 33 facing the second water outlet pipe 37 blocks up the second water outlet pipe 37, and the first drain valve 1, the second drain valve 2 and the mechanical delayer 3 are all filled with water.

When the first drainage pipe 27 of the first drain valve 1 is opened, the water flow in the fourth cavity 24 is discharged, the pressure in the fourth cavity 24 is instantaneously reduced, and the third cavity 23 is connected with the first water inlet pipe 25, so that the water flow continuously enters, the pressure in the third cavity 23 is greater than the pressure in the fourth cavity 24, the first valve core assembly 22 is pushed to move towards the direction away from the first water outlet pipe 26, the first water outlet pipe 26 which is originally blocked is dredged, and the water flow flowing in from the first water inlet pipe 25 can normally flow out through the first water outlet pipe 26, so that the water drainage is realized. Since the first drain pipe 27 of the first drain valve 1 is opened, so that the fourth chamber 24 of the first drain valve 1 is connected to the atmosphere, and the first drain valve 1 is communicated with the first communication pipe 7 of the mechanical delayer 3 through the third communication pipe 28, so that the second chamber 11 of the mechanical delayer 3 is communicated with the atmosphere, so that the pressure of the second chamber 11 is reduced, so that the pressure of the first chamber 10 of the mechanical delayer 3 is greater than that of the second chamber 11, under the action of the pressure difference, the tubular spool assembly 9 overcomes the pressure of the first spring 18 to move towards the front cover core 14 and compress the third inner chamber 15 and the second chamber 11, during the movement of the tubular spool assembly 9, the water in the second chamber 11 also slowly flows into the third inner chamber 15 through the flow port 13 and the flow passage 17 in sequence, and the water in the third inner chamber 15 flows into the first communication pipe 7 through the tubular front cover core 14, then, the water flows into the first drain valve 1, because when the tubular valve core assembly 9 starts to move, one end of the front cover core 14 close to the valve core assembly only contacts the water passing channel 17, the water flows into the inner chamber from the second chamber 11 slowly, so that the bottom surface of the tubular valve core assembly 9 can be close to the front cover core 14 after a period of time, when the tubular valve core assembly 9 is close to the front cover core 14, one end of the front cover core 14 close to the valve core assembly is just at the second water flowing channel 16, the closed end of the tubular valve core assembly 9 is just at the first water flowing channel 12, at this time, the water in the sixth chamber 35 of the second drain valve 2 flows into the first chamber 10 of the mechanical delayer 3 through the fourth communicating pipe 38 and the second communicating pipe 8 of the mechanical delayer 3, and then sequentially passes through the first water flowing channel 12, the second chamber 11 and the second water flowing channel 16, the third inner chamber 15, the tubular front cover core 14 and the first communication pipe 7 finally flow to the fourth chamber 24 of the first drain valve 1 and are discharged from the first drain pipe 27 of the first drain valve 1, at this time, because the pressure of the sixth chamber 35 of the second drain valve 2 is instantaneously reduced, and the fifth chamber 34 is connected with the second water inlet pipe 36, water continuously flows into the fifth chamber 34, so that the pressure in the fifth chamber 34 is greater than the pressure in the sixth chamber 35, the first valve core assembly 22 is pushed to move towards the direction far away from the second water outlet pipe 37, the originally blocked second water outlet pipe 37 is dredged, and water flowing in from the second water inlet pipe 36 can normally flow out through the second water outlet pipe 37, and drainage is realized.

The first valve core assembly 22 of the first drain valve 1, the tubular valve core assembly 9 of the mechanical time delay 3, the second valve core assembly 33 of the second drain valve 2, and the like all belong to one of movable assemblies.

The first flow channel 12, the second flow channel 16, the water channel 17, the third flow channel 29, the fourth flow channel 39, the fifth flow channel 48, etc. may be summarized as flow channels in the upper position, and these flow channels may be provided as U-shaped grooves.

A U-shaped ring 49 may also be provided to facilitate directional flow of the water stream when the movable assembly is in a certain position, thereby creating a suitable pressure differential between the different chambers.

In order to prevent water leakage, etc., a seal ring 50 may be provided.

In order to make the first valve core assembly 22 and the first outlet pipe 26 better separated when the first valve core assembly 22 moves away from the first outlet pipe 26, a fourth spring 51 for assisting in separating the first valve core assembly 22 and the first outlet pipe 26 may be further provided at an end of the first valve core assembly 22 facing the first outlet pipe 26.

In order to make the second valve spool assembly 33 and the second outlet pipe 37 better separable when the second valve spool assembly 33 moves away from the second outlet pipe 37, a second spring 40 for assisting in separating the second valve spool assembly 33 from the second outlet pipe 37 can be further arranged at one end of the second valve spool assembly 33 facing the second outlet pipe 37.

In order to enable the second valve core assembly 33 of the second drain valve 2 to be automatically closed and stop draining after draining water, the second valve core assembly 33 may be a combination of a tubular valve core housing 41 and a piston 42 with one closed end, that is, the second valve core assembly 33 includes the tubular valve core housing 41 with one closed end, the piston 42 is disposed in the second valve core assembly 33, the piston 42 is coaxial with the tubular valve core housing 41 and is capable of moving in the length direction of the tubular valve core housing 41 along the inner side surface of the tubular valve core housing 41, the closed end of the tubular valve core housing 41, the inner side surface of the tubular valve core housing 41 and the piston 42 enclose to form a first inner chamber 43, a third spring 44 is disposed in the first inner chamber 43, one end of the third spring 44 is fixedly connected to the tubular valve core housing 41, the other end is fixedly connected to the piston 42, a piston rod 45 is fixedly connected to one side of the piston 42 away from the closed end of the tubular valve core housing 41, the piston rod 45 is coaxial with the piston 42, a valve core cover 46 for blocking the piston 42 from separating from the valve core assembly is screwed to form a second inner chamber arc-shaped water flow passage 47 for guiding water flow into the second inner chamber 35.

When the second valve core assembly 33 moves away from the outlet pipe and abuts against the valve cover, since the second inlet pipe 36 is completely communicated with the second outlet pipe 37 at this time, the water in the second inlet pipe 36 will completely flow out from the second outlet pipe 37, so that the pressure in the fifth chamber 34 is reduced, the pressure on the left side of the third spring 44 is reduced, and on the right side of the third spring 44, since the water flow of the sixth chamber 35 is discharged, the pressure on the right side of the third spring 44 is also reduced, finally the third spring 44 is extended under the restoring force, the piston 42 and the piston rod 45 are pushed to move towards the right, and the tubular valve core housing 41 is pushed to move towards the left until the second outlet pipe 37 is blocked.

The first spool assembly 22 of the first drain valve 1 may also be structurally designed with reference to the second spool assembly 33 of the second drain valve.

Claims (6)

1. The utility model provides a time delay drainage system, characterized in that, includes first drain valve (1) and second drain valve (2), passes through pipeline intercommunication mechanical delay timer (3) between first drain valve (1) and second drain valve (2), first drain valve (1), second drain valve (2) and separate into a plurality of cavitys through movable subassembly in mechanical delay timer (3), be provided with a plurality of rivers passageways in mechanical delay timer (3), open first drain valve (1), lead to the rivers of one of them cavity in first drain valve (1) to discharge, make each cavity of first drain valve (1) produce the pressure differential to promote movable subassembly in first drain valve (1) to move;

the movable subassembly of first drain valve (1) leads to first drain valve (1) and atmosphere intercommunication after removing, thereby leads to each cavity in mechanical delay timer (3) produces the pressure differential, thereby promotes movable subassembly in mechanical delay timer (3) reachs each rivers passageway position, makes rivers in mechanical delay timer (3) and the rivers process of one of them cavity in second drain valve (2) each rivers passageway of mechanical delay timer (3) is discharged, leads to each cavity of second drain valve (2) produces the pressure differential, promotes movable subassembly in second drain valve (2) removes to open second drain valve (2).

2. The time-delay drainage system according to claim 1, wherein the mechanical time delay device (3) comprises a front cover (4) and a rear cover (5), the front cover (4) is provided with a first communication pipe (7) used for communicating with the first drainage valve (1), the rear cover (5) is provided with a second communication pipe (8) used for communicating with the second drainage valve (2), the front cover (4) and the rear cover (5) are in threaded connection to form a first cylindrical cavity (6), a tubular valve core assembly (9) with one sealed end is installed in the first cylindrical cavity (6), the tubular valve core assembly (9) can move along the length direction of the first cylindrical cavity (6), the unsealed end of the tubular valve core assembly (9) faces the front cover (4), the tubular valve core assembly (9) divides the first cylindrical cavity (6) into a first chamber (10) close to the second communication pipe (8) and a second chamber (11) close to the first communication pipe (7), the inner side face of the rear cover (5) close to the front cover (4) is provided with a plurality of tubular valve core assemblies (13) for guiding water flow into the first chamber (10) from the first chamber (11), and a plurality of water flow channels (13) are formed in the first chamber (13) and are formed in the positions close to the first chamber (11), and the positions of the first chamber (11) where water flow channels (13) are formed in the positions where water flow channels (13) where the water flow channels are formed in the water flow channels (9) The inner side of the valve core assembly (9) is inserted with a tubular front cover core (14) close to the overflow port (13), a space in front of the tubular valve core assembly (9) and the front cover core (14) is a third inner chamber (15), one end, far away from the tubular valve core assembly (9), of the front cover core (14) is fixedly connected with the front cover (4) and communicated with the first communicating pipe (7), a plurality of second water flow channels (16) used for leading water flow into the third inner chamber (15) from the second chamber (11) are arranged on the inner side surface of the closed end of the tubular valve core assembly (9), a water passing channel (17) used for leading the water flow into the third inner chamber (15) from the second chamber (11) is arranged between the overflow port (13) and the second water flow channels (16), and a first spring (18) used for pushing the tubular valve core assembly (9) to approach the second communicating pipe (8) is arranged on the outer side of the tubular valve core assembly (9).

3. A delayed drain system as claimed in claim 1, wherein the first drain valve (1) comprises a first drain valve housing (19) and a first valve cap (20), the first drain valve shell (19) is in threaded connection with the first valve cover (20) to form a second cylindrical cavity (21), a first valve core assembly (22) in a column shape is arranged in the second cylindrical cavity (21), the first valve core assembly (22) can move along the length direction of the second cylindrical cavity (21), the first valve core assembly (22) divides the second cylindrical cavity (21) into a third chamber (23) and a fourth chamber (24), a first water inlet pipe (25) and a first water outlet pipe (26) are arranged on the third chamber (23), the first water outlet pipe (26), the first valve core component (22) and the second cylindrical cavity (21) are coaxial, the first water inlet pipe (25) is arranged on the side surface of the third chamber (23), a first drain pipe (27) which can be opened or closed and a third communicating pipe (28) communicated with the mechanical time delay device (3) are arranged on one surface of the fourth chamber (24) far away from the first valve core component (22), a third water flow channel (29) for water flow from the third cavity (23) to the fourth cavity (24) is formed in the inner side surface of the fourth cavity (24);

before water drainage: the first valve core assembly (22) is close to the first water outlet pipe (26), and one end, facing the first water outlet pipe (26), of the first valve core assembly (22) is blocked with the first water outlet pipe (26);

during drainage: the first valve core assembly (22) moves away from the first water outlet pipe (26), and the first valve core assembly (22) leaves the first water outlet pipe (26) towards one end of the first water outlet pipe (26).

4. A delayed drain system according to claim 1, wherein the second drain valve (2) comprises a second drain valve housing (30) and a second valve cover (31), the second drain valve shell (30) is fixedly connected with the second valve cover (31) to form a third cylindrical cavity (32), a second valve core component (33) in a column shape is arranged in the third column-shaped cavity (32), and the second valve core component (33) can move along the length direction of the third column-shaped cavity (32), the second spool assembly (33) divides the third cylindrical cavity (32) into a fifth chamber (34) and a sixth chamber (35), a second water inlet pipe (36) and a second water outlet pipe (37) are arranged on the fifth cavity (34), the second water outlet pipe (37), the second valve core component (33) and the third cylindrical cavity (32) are coaxial, the second inlet pipe (36) is arranged at the side of the fifth chamber (34), a fourth communicating pipe (38) communicated with the mechanical delayer (3) is arranged on one surface of the sixth chamber (35) far away from the second valve core component (33), a fourth water flow channel (39) for water to flow from the fifth cavity (34) to the sixth cavity (35) is formed in the inner side surface of the sixth cavity (35);

before water drainage: the second valve core assembly (33) is close to the second water outlet pipe (37), and one end, facing the second water outlet pipe (37), of the second valve core assembly (33) blocks the second water outlet pipe (37);

during drainage: the second valve core assembly (33) moves away from the second water outlet pipe (37), and the second valve core assembly (33) leaves the second water outlet pipe (37) towards one end of the second water outlet pipe (37).

5. A delayed drainage system as claimed in claim 4, characterised in that the end of the second valve spool assembly (33) facing the second outlet pipe (37) is provided with a second spring (40) for assisting in separating the second valve spool assembly (33) from the second outlet pipe (37).

6. The delayed drainage system of claim 5, wherein the second valve core assembly (33) comprises a tubular valve core housing (41) with one end closed, a piston (42) is arranged in the second valve core assembly (33), the piston (42) is coaxial with the tubular valve core housing (41) and can move along the inner side surface of the tubular valve core housing (41) in the length direction of the tubular valve core housing (41), the closed end of the tubular valve core housing (41), the inner side surface of the tubular valve core housing (41) and the piston (42) enclose to form a first inner chamber (43), a third spring (44) is arranged in the first inner chamber (43), one end of the third spring (44) is fixedly connected with the tubular valve core shell (41), the other end of the third spring is fixedly connected with the piston (42), a piston rod (45) is fixedly connected to one surface, far away from the closed end of the tubular valve core shell (41), of the piston (42), the piston rod (45) and the piston (42) are coaxial, a valve core cover (46) used for blocking the piston (42) and the valve core component from separating is in threaded connection with the non-closed end of the tubular valve core shell (41), the piston (42) is inserted into the valve core cover (46), and the piston (42), the inner side surface of the tubular valve core shell (41) and the valve core cover (46) enclose to form a second inner cavity (47) And a fifth water flow channel (48) for guiding water flow from the sixth cavity (35) to the second inner cavity (47) is arranged on the cambered surface of the piston rod (45) facing the valve core cover (46).

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