CN217537211U - Drainage device of closestool - Google Patents

Abstract

The utility model discloses a drainage device of closestool, including water tank, drain valve and drain pipe, the inner chamber of water tank passes through the outlet and the drain pipe intercommunication of drain valve to the urinal of closestool, and the drain valve has the starter that the outlet of control drain valve was opened, and the air pressure in the drain pipe is less than external atmospheric pressure when the outlet is not opened, still includes the pressure regulating passageway that is linked together with the drain pipe and controls the pressure regulating passageway and be linked together with the outside air or the pressure regulating subassembly that cuts off, and the pressure regulating passageway is opened to linkage pressure regulating subassembly before starter control outlet is opened. The utility model discloses an open the pressure regulating passageway before opening the outlet for the air pressure in the drain pipe is balanced with external atmospheric pressure before opening the outlet, thereby can realize that the power value that the drive drain valve opened the drainage is littleer, uses to experience better.

Description

Drainage device of closestool

Technical Field

The utility model relates to a drainage device of a closestool.

Background

In the drainage device of the existing closestool, the urinal is generally flushed by adopting the stored water of the water tank, the drainage valve is arranged in the water tank to control whether the water tank drains water or not, and the drainage port of the drainage valve is communicated with the urinal through the drainage pipe. In order to improve the flushing effect on the urinal, the drainage pipe of some closestool drainage devices is designed to be isolated from the outside atmosphere when the drainage port is not opened, and a water seal arranged in the urinal can prevent outside air from entering the drainage pipe through the urinal. Like this, after the drainage, there is one section to deposit water in the drain pipe, and the air pressure in the drain pipe is less than external atmospheric pressure when the outlet is not opened, and when washing next time, the deposit water in the drain pipe can be arranged to the urinal immediately, has increased drainage speed and displacement to make and wash the effect better.

However, in the prior art, when the drain opening is not opened, negative pressure is generated in the drain pipe, so that a valve core on the drain valve for closing the drain opening is subjected to downward suction, and therefore, a larger acting force is required for driving the valve core of the drain valve to open the drain opening upwards, the use experience is poor, and old people or children even cannot drive the drain valve to open the drain opening.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a drainage device of closestool, it has the negative pressure in the drain pipe when not opening the drainage, nevertheless can avoid this negative pressure to lead to the drive drain valve to open the hard problem of drainage effectively, uses and experiences better.

In order to achieve the above object, the utility model provides a drainage device of closestool, including water tank, drain valve and drain pipe, the inner chamber of water tank passes through the outlet of drain valve and the drain pipe intercommunication is to the urinal of closestool, the drain valve has control the start-up piece that the outlet of drain valve was opened, air pressure in the drain pipe is in be less than external atmospheric pressure when the outlet is not opened, still include with pressure regulating channel and the control that the drain pipe is linked together the pressure regulating channel is linked together or the pressure regulating component who cuts off with the outside air, start-up piece control before the outlet is opened linkage the pressure regulating component is opened the pressure regulating channel.

According to the utility model discloses a drainage device of closestool is through opening the pressure regulating passageway before opening the outlet for the air pressure in the drain pipe is balanced mutually with external atmospheric pressure before opening the outlet, thereby can avoid effectively that the negative pressure in the drain pipe leads to the drive drain valve to open the hard problem of drainage, uses and experiences better.

In some embodiments, all or part of the pressure regulating channel is arranged in the water tank, the pressure regulating channel comprises an overflow port and a pressure regulating port which are positioned above the water storage level of the water tank, the pressure regulating component is matched with the pressure regulating port in an opening and closing mode to control the pressure regulating channel to be communicated with or cut off from the outside air, an overflow component comprising a floating barrel is further arranged in the water tank, the overflow port is controlled to be sealed or opened by the overflow component, and when the water level in the water tank rises to a position higher than the water storage level by a certain distance, the floating barrel floats and controls the overflow port to be opened.

In the above scheme, set up overflow mouth and pressure regulating mouth on the pressure regulating passageway that lies in the water storage water level of water tank, pressure regulating subassembly and pressure regulating mouth switching cooperation are linked together or cut off with outside air in order to control pressure regulating passageway, and overflow subassembly control overflow mouth is sealed or is opened, and the pressure regulating passageway also is used as the overflow passageway of water tank, promptly, pressure regulating passageway and overflow passageway integration become same passageway, simple structure, compactness to can directly adopt the overflow passageway of current closestool water tank to reequip, save manufacturing cost.

In some embodiments, the top opening of the pressure regulating channel forms the overflow port, the side wall opening of the pressure regulating channel forms the pressure regulating port, and the pressure regulating assembly and the overflow assembly are both installed on a pipeline forming the pressure regulating channel.

In the above scheme, the top end opening with the pressure regulating passageway is used as the overflow mouth, and the lateral wall opening with the pressure regulating passageway is used as the pressure regulating mouth to can make the overflow effect not influenced, and all install pressure regulating subassembly and overflow subassembly on forming the pipeline that the pressure regulating leads to, the structure is compacter, and it is more convenient to install.

In some embodiments, the actuator has an actuation stroke and a drive stroke, the actuator opens the pressure regulating port upon movement, the actuator opens the drain port upon movement of the actuation stroke, and the actuator fully opens the drain port upon movement of the drive stroke; or, the starter has pressure regulating stroke, start-up stroke and drive stroke, the start-up stroke is greater than the pressure regulating stroke, the pressure regulating stroke is greater than Omm, the starter motion just opened during the pressure regulating stroke the pressure regulating mouth, the starter motion just opened during the start-up stroke the outlet, the starter motion fully open during the drive stroke the outlet.

In some embodiments, the actuators include half-row actuators having a half-row actuation stroke and a half-row drive stroke, and full-row actuators having a full-row actuation stroke and a full-row drive stroke; the half-row starting stroke is greater than or equal to or less than the full-row starting stroke, and the half-row driving stroke is greater than or equal to or less than the full-row driving stroke;

the half-row starting piece and the full-row starting piece move independently without linkage, and the half-row starting piece and the full-row starting piece are linked with the pressure regulating assembly respectively; or,

the half-row starting piece is linked with the full-row starting piece, the full-row starting piece is directly linked with the pressure regulating assembly, and the half-row starting piece is indirectly linked with the pressure regulating assembly through the full-row starting piece; or,

the full-row starting part is linked with the half-row starting part, the half-row starting part is directly linked with the pressure regulating assembly, and the full-row starting part is indirectly linked with the pressure regulating assembly through the half-row starting part.

In the above-mentioned scheme, half row of starting member and full row of starting member can link the pressure regulating subassembly respectively, perhaps, half row of starting member is through the indirect pressure regulating subassembly that links of full row of starting member to the realization possesses the drain valve of double function no matter half row or full row can both reach the purpose of laborsaving operation.

In some embodiments, the pressure regulating subassembly is located including the pressure regulating seat that has logical runner, activity pressure regulating valve core on the pressure regulating seat with be used for right the pressure regulating valve core carries out the first elastic component that resets, the pressure regulating seat is fixed in and forms on the pipeline of pressure regulating passageway, the one end that leads to the runner be with the sealed end of giving vent to anger that communicates of pressure regulating passageway, the other end that leads to the runner be by the inlet end of pressure regulating valve core control switching, pressure regulating valve core with be equipped with first sealing member between the inlet end, start the piece with pressure regulating valve core linkage cooperation.

In some embodiments, the actuating member is a button disposed at an upper portion of the valve body of the drain valve, the pressure regulating valve core is fixedly connected to a connecting rod, the button is connected to a pressing rod, the pressing rod abuts against the connecting rod when moving downwards along with the button, and the connecting rod drives the pressure regulating valve core to move downwards to open the air inlet end of the through flow passage.

In the scheme, the press key drives the pressure regulating valve core to move through the press rod and the connecting rod, and the structure is simple and the linkage is reliable.

In some embodiments, the height of the link is adjustable up and down.

In the above scheme, the height-adjustable of connecting rod to make pressure regulating subassembly can the different high drain valves of wildcard, the wildcard nature is better, and reduce the required precision to the cooperation size of spare parts such as starter, pressure regulating seat, pressure regulating case.

In some embodiments, the connecting rod is a screw rod, the pressure regulating seat is provided with a vertically through screw hole, the screw rod is vertically connected with the screw hole through threads to regulate the height, and the pressure regulating assembly further comprises a nut, and the nut is in threaded fit with the screw rod and abuts against the pressure regulating seat when the screw rod is locked.

In the above scheme, the height adjusting structure of the connecting rod is simple and reliable in function.

In some embodiments, the pressure regulating seat is integrally formed with a conduit forming the pressure regulating channel; or, the pressure regulating seat and the pipeline forming the pressure regulating channel are formed in a split mode, and at the moment, a second sealing piece is arranged between the pressure regulating seat and the pipeline forming the pressure regulating channel.

In some embodiments, the drain valve includes a valve body and a base having the drain opening, and the pressure regulating passage is mounted on the base of the drain valve and communicates with the drain opening.

In some embodiments, the drain has a water spot within the drain when the drain is not open, the level of the water spot within the drain being higher than the level of the water spot within the bowl of the toilet.

Drawings

In order that the advantages of the invention will be readily understood, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings. Understanding that these drawings depict only typical embodiments of the invention and are not therefore to be considered to be limiting of its scope, the invention will be described and explained with additional specificity and detail through the use of the accompanying drawings. In the drawings:

fig. 1 is an assembled perspective view of a drain valve, a pressure regulating assembly and a pressure regulating channel according to an embodiment of the present invention;

fig. 2 is one of three-dimensional exploded views of a drain valve, a pressure regulating assembly and a pressure regulating channel according to an embodiment of the present invention;

fig. 3 is a second exploded perspective view of the drain valve, the pressure regulating assembly and the pressure regulating passage according to an embodiment of the present invention;

fig. 4 is a sectional view of the assembled drain valve, pressure regulating assembly and pressure regulating channel in an embodiment of the present invention;

fig. 5 is one of cross-sectional views of a pressure regulating assembly according to an embodiment of the present invention;

fig. 6 is a second cross-sectional view of a pressure adjustment assembly according to an embodiment of the present invention;

FIG. 7 is a cross-sectional view of a half row actuator and a full row actuator in an initial position in accordance with an embodiment of the present invention;

fig. 8 is a cross-sectional view of a full row of actuators during pressing in accordance with an embodiment of the present invention;

fig. 9 is a cross-sectional view of a full row actuator of an embodiment of the present invention fully depressed (i.e., the full row actuator has moved a full row drive stroke);

FIG. 10 is a cross-sectional view of a half-row actuator of an embodiment of the present invention during pressing;

fig. 11 is a cross-sectional view of a half-row actuator according to an embodiment of the present invention fully depressed (i.e., half-row actuator moved a half-row drive stroke);

the symbols are as follows:

10-a drain valve; 10 a-a valve body; 10 b-a base; 11-a water outlet; 12-an actuator; 121-half row of actuating members; 122-full row of actuators; 13-a compression bar; 14-a second return spring;

20-a voltage regulation channel; 21-a pressure regulating port; 22-an overflow port;

30-a voltage regulation assembly; 31-a pressure regulating seat; 311-through flow channel; 3111-an inlet end; 3112-gas outlet end; 312-screw hole; 32-a pressure regulating valve core; 33-a first return spring; 34-a first seal; 35-a second seal; 36-a connecting rod; 37-a nut;

40-an overflow assembly; 41-a floating barrel; 42-sealing cover.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention clearer and more obvious, the following description of the present invention with reference to the accompanying drawings and embodiments is provided for further details. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

In the following discussion, details are given to provide a more thorough understanding of the present invention. One skilled in the relevant art will recognize, however, that the invention may be practiced without one or more of the specific details. In certain instances, some features that are known in the art have not been described in detail in order to avoid obscuring the present invention. It is to be understood that the terms "upper," "lower," "front," "rear," "left," "right," and the like as used herein, are used herein for descriptive purposes and not for purposes of limitation.

Ordinal words such as "first" and "second" are referred to in this application as labels only, and do not have any other meanings, such as a particular order, etc. Also, for example, the term "first component" does not itself imply the presence of "second component", and the term "second component" does not itself imply the presence of "first component".

Referring to fig. 1 to 11, a drainage device of a toilet according to a preferred embodiment of the present invention includes a water tank (not shown), a drainage valve 10 and a drainage pipe (not shown), wherein an inner cavity of the water tank is communicated to a urinal of the toilet through the drainage port 11 of the drainage valve 10 and the drainage pipe. The drain valve 10 has an actuator 12 for controlling the opening of the drain opening 11 of the drain valve 10, and the drain valve 10 may be a conventional drain valve. When the water outlet 11 is not opened, the inner cavity of the water discharge pipe is isolated from the outside atmosphere, and the air pressure in the water discharge pipe is lower than the outside atmosphere when the water outlet 11 is not opened. The toilet drain device further includes a pressure regulating passage 20 communicated with the drain pipe and a pressure regulating assembly 30 for controlling the pressure regulating passage 20 to be communicated with or cut off from the outside air. The actuator 12 controls the pressure regulating assembly 30 to open the pressure regulating passage 20 before the drain 11 is opened. By opening the pressure regulating channel 20 before the water outlet 11 is opened, the air pressure in the drain pipe is balanced with the external atmospheric pressure before the water outlet 11 is opened, so that the problem that negative pressure in the drain pipe causes the drain valve 10 to be driven to open and drain water difficultly can be effectively solved, and the use experience is better.

The pressure regulating channel 20 is wholly or partially arranged in the water tank, and the pressure regulating channel 20 of the embodiment is wholly arranged in the water tank. The pressure regulating channel 20 comprises an overflow port 22 and a pressure regulating port 21 which are positioned above the water level of the water storage of the water tank, and the pressure regulating component 30 is matched with the pressure regulating port 21 in an opening and closing mode to control the pressure regulating channel 20 to be communicated with or cut off from the outside air. The water tank is also internally provided with an overflow assembly 40 comprising a floating bucket 41, the overflow assembly 40 controls the sealing or opening of the overflow port 22, when the water level in the water tank rises to a position which is a certain distance higher than the water level of the stored water, the floating bucket 41 of the overflow assembly 40 floats and controls the overflow port 22 to be opened, so that the water in the water tank can be discharged from the pressure regulating channel 20 to the urinal of the closestool through the overflow port 22, and the overflow of the water flow from other parts of the water tank is avoided. Therefore, the pressure regulating channel 20 is also used as an overflow channel of the water tank, namely, the pressure regulating channel 20 and the overflow channel are integrated into the same channel, the structure is simple and compact, and the existing overflow channel of the water tank of the toilet can be directly adopted for modification, so that the manufacturing cost is saved.

In this embodiment, the top opening of pressure regulating passageway 20 forms overflow mouth 22, and the lateral wall opening of pressure regulating passageway 20 forms pressure regulating mouth 21, and pressure regulating subassembly 30 and overflow subassembly are all installed on forming the pipeline that the pressure regulating leads to. The top end opening of the pressure regulating channel 20 is used as the overflow port 22, and the side wall opening of the pressure regulating channel 20 is used as the pressure regulating port 21, so that the overflow effect is not affected, the pressure regulating assembly 30 and the overflow assembly are both installed on a pipeline which is communicated with the pressure regulating channel, the structure is more compact, and the installation is more convenient.

Referring to fig. 1 to 4, in the present embodiment, the overflow assembly 40 further includes a sealing cover 42 engaged with the overflow port 22, the sealing cover 42 is in linkage engagement with the floating bucket 41, the floating bucket 41 floats to drive the sealing cover 42 to move upward and open the overflow port 22, and the floating bucket 41 falls to drive the sealing cover 42 to move downward and close the overflow port 22.

The actuator 12 has an actuation stroke, which is the distance between the actuator 12 from the initial un-actuated position to the position when the drain 11 has just been opened, and a drive stroke, which is the distance between the actuator 12 from the initial un-actuated position to the position when the drain 11 is fully opened. In this embodiment, please refer to fig. 7, when the actuating member 12 is not pressed, the lower surface of the pressure lever 13 described below just abuts against the end surface of the top end of the connecting rod 36, the pressure regulating port 21 is opened when the actuating member 12 moves (equivalent to the pressure regulating stroke described below equal to Omm), the drain port 11 is opened when the actuating member 12 moves the actuating stroke, so that the pressure regulating port 21 is opened first, the drain port 11 is opened later, and the pressure regulating channel 20 is opened by the linkage pressure regulating assembly 30 before the actuating member 12 controls the drain port 11 to be opened; or, in other embodiments, the activating member 12 may also have a pressure regulating stroke, an activating stroke and a driving stroke, similarly, the activating stroke refers to a distance between the position where the activating member 12 is initially not driven and the position where the drain opening 11 is just opened, the driving stroke refers to a distance between the position where the activating member 12 is initially not driven and the position where the drain opening 11 is completely opened, and the pressure regulating stroke refers to a distance between the position where the activating member 12 is initially not driven and the position where the pressure regulating opening 21 is just opened, the activating stroke is greater than the pressure regulating stroke, the pressure regulating stroke is greater than Omm, the pressure regulating opening 21 is just opened when the activating member 12 moves the pressure regulating stroke, and the drain opening 11 is just opened when the activating member 12 moves the starting stroke, so that the pressure regulating opening 21 is opened first, the drain opening 11 is opened later, and the pressure regulating passage 20 is opened by the linkage pressure regulating assembly 30 before the activating member 12 controls the drain opening 11.

In this embodiment, referring to fig. 3 and 4, the actuator 12 includes a half-row actuator 121 and a full-row actuator 122, the half-row actuator 121 has a half-row actuation stroke and a half-row actuation stroke, and the full-row actuator 122 has a full-row actuation stroke and a full-row actuation stroke. The half-row starting stroke is larger than or equal to or smaller than the full-row starting stroke, namely the half-row starting stroke and the full-row starting stroke can be consistent or inconsistent, and the relation between the half-row starting stroke and the full-row starting stroke is not limited. The half-row driving stroke is larger than or equal to or smaller than the full-row driving stroke, namely the half-row driving stroke and the full-row driving stroke can be consistent or inconsistent, and the relationship between the half-row driving stroke and the full-row driving stroke is not limited. Specifically, in this embodiment, the half-row starting stroke is equal to the full-row starting stroke, and the half-row driving stroke is also equal to the full-row driving stroke.

In this embodiment, as shown in fig. 10 and 11, the half-discharge actuating member 121 is linked with the full-discharge actuating member 122, the full-discharge actuating member 122 is directly linked with the pressure regulating assembly 30, and the half-discharge actuating member 121 is indirectly linked with the pressure regulating assembly 30 through the full-discharge actuating member 122, so that the purpose of labor saving operation can be achieved no matter whether the drainage valve 10 with the double-discharge function is half-discharge or full-discharge. Or, alternatively, the full-row starting piece 122 is linked with the half-row starting piece 121, the half-row starting piece 121 is directly linked with the pressure regulating assembly 30, and the full-row starting piece 122 is indirectly linked with the pressure regulating assembly 30 through the half-row starting piece 121; alternatively, the half-discharge actuating member 121 and the full-discharge actuating member 122 may move independently without interlocking with each other, and the half-discharge actuating member 121 and the full-discharge actuating member 122 may be interlocked with the pressure regulating assembly 30, so that the water discharge valve 10 having the double discharge function may be operated in a labor-saving manner regardless of the half-discharge or the full-discharge.

In this embodiment, the pressure regulating assembly 30 includes a pressure regulating seat 31 having a through flow passage 311, a pressure regulating valve core 32 movably disposed on the pressure regulating seat 31, and a first reset elastic member 33 for resetting the pressure regulating valve core 32, the pressure regulating seat 31 is fixed on a pipe forming the pressure regulating passage 20, one end of the through flow passage 311 is an air outlet port 3112 hermetically communicated with the pressure regulating passage 20, the other end of the through flow passage 311 is an air inlet port 3111 controlled to be opened and closed by the pressure regulating valve core 32, and a first sealing member 34 is disposed between the pressure regulating valve core 32 and the air inlet port 3111, so that the air inlet port 3111 can be hermetically closed. Actuator 12 is cooperatively engaged with pressure regulator valve spool 32. The first return elastic member 33 is preferably a return spring here.

In this embodiment, the actuating member 12 and the pressure regulating valve core 32 are in linkage fit through a pressing rod 13 and a connecting rod 36, specifically, the actuating member 12 is a button disposed on the upper portion of the valve body 10a of the drain valve 10, the pressure regulating valve core 32 is fixedly connected to a connecting rod 36, the button is connected to a pressing rod 13, the pressing rod 13 abuts against the connecting rod 36 when the button goes down, and then the connecting rod 36 drives the pressure regulating valve core 32 to move downward to open the air inlet 3111 of the through flow passage 311. The press key drives the pressure regulating valve core 32 to move through the press rod 13 and the connecting rod 36, and the structure is simple and the linkage is reliable. The drain valve 10 is further provided with a second return elastic member 14 for returning the actuator 12, and the second return elastic member 14 also employs a return spring.

In this embodiment, the height of the connecting rod 36 can be adjusted up and down, so that the pressure regulating assembly 30 can be used for communicating the drain valves 10 with different heights, the communication performance is better, and the precision requirements on the matching sizes of the components such as the starting piece 12, the pressure regulating seat 31 and the pressure regulating valve core 32 are reduced.

Specifically, the connecting rod 36 is a screw, the pressure regulating seat 31 is provided with a screw hole 312 which is vertically penetrated, and the screw is vertically adjusted in height by being connected with the screw hole 132 through a screw thread. The pressure regulating assembly 30 further comprises a nut 37, and the nut 37 is in threaded fit with the screw and abuts against the pressure regulating seat 31 when the screw is locked. The height adjustment of the connecting rod 36 is simple in structure and reliable in function.

In this embodiment, the pressure regulating seat 31 and the pipeline forming the pressure regulating channel 20 are formed separately, and at this time, the second sealing member 35 is disposed between the pressure regulating seat 31 and the pipeline forming the pressure regulating channel 20, so that the through flow passage 311 and the pressure regulating channel 20 are in sealed communication. Of course, in other embodiments, the pressure regulating seat 31 may be integrally formed with the pipe forming the pressure regulating passage 20, so that the second sealing member 35 may be omitted.

In this embodiment, the discharge valve 10 includes a valve body 10a and a base 10b having a discharge port 11, and the pressure regulating passage 20 is installed on the base 10b of the discharge valve 10 and communicates with the discharge port 11.

In this embodiment, the drain pipe has a water spot therein when the drain port 11 is not opened, and the liquid level of the water spot in the drain pipe is higher than the liquid level of the water spot in the toilet bowl of the toilet.

The working process of this embodiment is briefly described as follows:

referring to fig. 7, at this time, the half-discharge actuator 121 and the full-discharge actuator 122 of the drain valve 10 are in the initially non-pressed positions by the elastic force of the second return elastic member 14. The pressure regulating valve core 32 of the pressure regulating assembly 30 is positioned at the position of closing the air inlet 3111 of the through flow passage 311 under the elastic force of the first reset elastic member 33, so as to control the pressure regulating passage 20 to be cut off from the outside air, the water inlet end of the drain pipe is sealed and closed by the drain valve 10, the water outlet end is sealed by the water seal of the urinal, the inner cavity of the drain pipe is isolated from the outside atmosphere, water stored in the drain pipe has a certain height, and the air pressure in the drain pipe is less than the outside atmosphere when the drain port 11 is not opened.

When full drainage is required, referring to fig. 8, at this time, in the state of fig. 7, the full-row starting piece 122 is pressed downward, the full-row starting piece 122 drives the connecting rod 36 to move downward through the pressing rod 13, the connecting rod 36 further drives the pressure regulating valve core 32 to open the air inlet end 3111 of the through flow channel 311, and outside air can enter the through flow channel 311 through the air inlet end 3111 of the through flow channel 311 and then enter the pressure regulating channel 20 and the drain pipe (the air flow path is shown by an arrow in the figure), so that negative pressure in the drain pipe is offset, and the air pressure in the drain pipe is regulated to be balanced with the atmospheric pressure.

Then, the full-discharge starting member 122 is continuously pressed downwards, when the full-discharge starting member 122 moves by the full-discharge starting stroke, the water outlet 11 of the water discharge valve 10 is just opened, and because the negative pressure in the water discharge pipe does not exist at this time, the valve core (not shown) in the water discharge valve 10 is driven to open the water outlet, and the suction force of the negative pressure on the valve core of the water discharge valve 10 does not need to be overcome any more, so that the purpose of lifting the valve core in a labor-saving manner can be achieved. The full row actuator 122 is shown in fig. 8 positioned between movement of the full row actuator stroke and the full row drive stroke.

Continuing to press the full-discharge actuator 122 downwardly, the drain opening 11 is fully opened as the full-discharge actuator 122 moves through the full-discharge drive stroke, at which point the drain valve performs the full-discharge function, as shown in fig. 9.

When half water drainage is needed, referring to fig. 10, at this time, in the state of fig. 7, the half-row starter 121 is pressed downward, the half-row starter 121 drives the full-row starter 122 to move downward together, the full-row starter 122 drives the connecting rod 36 to move downward through the pressing rod 13, the connecting rod 36 further drives the pressure regulating valve core 32 to open the air inlet end 3111 of the through flow passage 311, and outside air can enter the through flow passage 311 through the air inlet end 3111 of the through flow passage 311 and then enter the pressure regulating passage 20 and the water drainage pipe (the air flow path is shown by an arrow in the figure), so as to counteract the negative pressure in the water drainage pipe and regulate the air pressure in the water drainage pipe to be balanced with the atmospheric pressure.

Then, the half-discharge starting part 121 is continuously pressed downwards, when the half-discharge starting part 121 moves by the half-discharge starting stroke, the water outlet 11 of the water discharge valve 10 is just opened, and because the negative pressure in the water discharge pipe does not exist at this time, the valve core (not shown) in the water discharge valve 10 is driven to open the water outlet, the suction force of the negative pressure on the valve core of the water discharge valve 10 does not need to be overcome any more, and the purpose of lifting the valve core in a labor-saving manner can be achieved. The half-row actuator 121 is shown in fig. 9 in a position between a half-row actuation stroke and a half-row drive stroke.

Continuing to press the half-discharge actuator 121 downward, the drain opening 11 is fully opened when the half-discharge actuator 121 moves the half-discharge driving stroke, at which time the drain valve performs a half-discharge function, as shown in fig. 11.

In both full-discharge and half-discharge modes, after each discharge, water is stored in the discharge pipe, and the liquid level of the stored water in the discharge pipe is higher than that of the stored water in a urinal of the closestool.

Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Terms such as "component" and the like, when used herein, can refer to either a single part or a combination of parts. Terms such as "mounted," "disposed," and the like, as used herein, may refer to one component being directly attached to another component or one component being attached to another component through intervening components. Features described herein in one embodiment may be applied to another embodiment, either alone or in combination with other features, unless the feature is otherwise inapplicable or otherwise stated in the other embodiment.

While the foregoing specification illustrates and describes the preferred embodiments of the present invention, it is to be understood that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the invention as expressed in the above teachings or as determined by the person of ordinary skill in the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (12)

1. The utility model provides a drainage device of closestool, includes water tank, drain valve and drain pipe, the inner chamber of water tank passes through the outlet of drain valve and the drain pipe communicates to the urinal of closestool, the drain valve has the control the starter that the outlet of drain valve was opened, the air pressure in the drain pipe is in be less than external atmospheric pressure when the outlet is not opened, its characterized in that, still include with the pressure regulating passageway that the drain pipe is linked together and control the pressure regulating subassembly that pressure regulating passageway and external air are linked together or cut off, the starter control before the outlet is opened the linkage pressure regulating subassembly is opened the pressure regulating passageway.

2. The toilet bowl water discharge device according to claim 1, wherein the pressure regulating channel is entirely or partially disposed in the water tank, the pressure regulating channel comprises an overflow port and a pressure regulating port which are located above the water level of the water tank, the pressure regulating assembly is matched with the pressure regulating port in an opening and closing mode to control the pressure regulating channel to be communicated or cut off with the outside air, an overflow assembly comprising a floating barrel is further disposed in the water tank and controls the overflow port to be sealed or opened, and when the water level in the water tank rises to a position higher than the water level by a certain distance, the floating barrel floats and controls the overflow port to be opened.

3. The toilet drain device according to claim 2, wherein the overflow port is formed by an opening at the top end of the pressure regulating channel, the pressure regulating port is formed by an opening at the side wall of the pressure regulating channel, and the pressure regulating assembly and the overflow assembly are both mounted on a pipeline forming the pressure regulating channel.

4. The toilet drain of claim 2, wherein the actuator has an actuation stroke and a drive stroke, wherein the actuator opens the pressure regulator port upon movement of the actuator, wherein the actuator opens the drain port upon movement of the actuation stroke, and wherein the actuator fully opens the drain port upon movement of the actuator through the drive stroke; or, the starter has pressure regulating stroke, start-up stroke and drive stroke, the start-up stroke is greater than the pressure regulating stroke, the pressure regulating stroke is greater than Omm, the starter motion just opened during the pressure regulating stroke the pressure regulating mouth, the starter motion just opened during the start-up stroke the outlet, the starter motion fully open during the drive stroke the outlet.

5. The toilet drain of claim 4, wherein the actuator includes a half-row actuator having a half-row actuation stroke and a half-row drive stroke and a full-row actuator having a full-row actuation stroke and a full-row drive stroke; the half-row starting stroke is greater than or equal to or less than the full-row starting stroke, and the half-row driving stroke is greater than or equal to or less than the full-row driving stroke;

the half-row starting piece and the full-row starting piece move independently without linkage with each other, and the half-row starting piece and the full-row starting piece are linked with the pressure regulating assembly respectively; or,

the half-row starting piece is linked with the full-row starting piece, the full-row starting piece is directly linked with the pressure regulating assembly, and the half-row starting piece is indirectly linked with the pressure regulating assembly through the full-row starting piece; or,

the full-row starting part is linked with the half-row starting part, the half-row starting part is directly linked with the pressure regulating assembly, and the full-row starting part is indirectly linked with the pressure regulating assembly through the half-row starting part.

6. The toilet drainage device according to claim 1, wherein the pressure regulating assembly comprises a pressure regulating seat with a flow passage, a pressure regulating valve core movably arranged on the pressure regulating seat and a first reset elastic part for resetting the pressure regulating valve core, the pressure regulating seat is fixed on a pipeline forming the pressure regulating passage, one end of the flow passage is an air outlet end communicated with the pressure regulating passage in a sealing manner, the other end of the flow passage is an air inlet end controlled to be opened and closed by the pressure regulating valve core, a first sealing part is arranged between the pressure regulating valve core and the air inlet end, and the starting part is in linkage fit with the pressure regulating valve core.

7. The toilet bowl water discharge device according to claim 6, wherein the actuating member is a button disposed at an upper portion of the valve body of the water discharge valve, the pressure regulating valve core is fixedly connected to a connecting rod, the button is connected to a pressing rod, the pressing rod abuts against the connecting rod when moving downwards along with the button, and the connecting rod drives the pressure regulating valve core to move downwards to open the air inlet end of the through flow passage.

8. The drainage apparatus of a toilet bowl according to claim 7, wherein the height of the link is adjustable up and down.

9. The toilet bowl water discharge device according to claim 8, wherein the connecting rod is a screw rod, the pressure regulating seat is provided with a screw hole which is vertically communicated, the screw rod is connected with the screw hole through threads to adjust the height vertically, the pressure regulating assembly further comprises a nut, and the nut is in threaded fit with the screw rod and abuts against the pressure regulating seat when the screw rod is locked.

10. The drainage apparatus of a toilet bowl according to claim 6, wherein the pressure regulating seat is integrally formed with a pipe forming the pressure regulating passage; or, the pressure regulating seat and the pipeline forming the pressure regulating channel are formed in a split mode, and at the moment, a second sealing piece is arranged between the pressure regulating seat and the pipeline forming the pressure regulating channel.

11. The drain device of the toilet bowl according to claim 1, wherein the drain valve includes a valve body and a base having the drain opening, and the pressure regulating passage is installed on the base of the drain valve and communicates with the drain opening.

12. The toilet drain of claim 1, wherein the drain pipe has a water spot within the drain pipe when the drain port is not open, a level of the water spot within the drain pipe being higher than a level of the water spot within a bowl of the toilet.

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