CN217053635U - Flushing device for water tank - Google Patents

Abstract

The utility model discloses a water tank flushing device, which comprises a flushing-assisting valve, a water tank, a drain valve for controlling the drainage of the water tank, a drain channel for communicating the drain valve with a drain pipe of a urinal of a closestool, and a starting mechanism for driving the flushing-assisting valve and the drain valve, wherein the flushing-assisting valve comprises a control mechanism and a first valve body provided with a water inlet channel and a water outlet channel, the water inlet channel is communicated with an external pressure water source, the water outlet channel is communicated with the urinal, the control mechanism comprises a floating barrel movably arranged in the water tank and a limiting part movably arranged on the first valve body; when the limiting piece is positioned at the limiting position, the floating barrel can be limited at a low position; when the limiting piece is positioned at the abdicating position, the limiting on the floating barrel can be removed, so that the floating barrel can float to a high position; when the floating barrel is positioned at a high position, the control mechanism controls the water inlet channel to be communicated with the water outlet channel; when the floating barrel is positioned at a low position, the control mechanism controls the water inlet channel and the water outlet channel to be disconnected, and the limiting piece can be reset to a limiting position from a yielding position; the starting mechanism drives the flushing assisting valve by driving the limiting piece.

Description

Flushing device for water tank

Technical Field

The utility model relates to a bathroom technical field especially relates to a water tank washing unit.

Background

In the existing flushing device for flushing the closestool, the hidden type water tank flushing device is more and more widely applied, and the specifications of the hidden type water tank are required to be diversified to adapt to various occasions due to the flexible arrangement of toilets of various house types. Wherein, the low hidden water tank flushing device is low in installation height of the water tank and flexible in layout, and is favored by consumers. Concealed cistern is usually fitted with a water inlet valve, a water discharge valve, a drive means and cistern accessories. When water is drained, the driving device is pressed to start the drain valve, and water in the water tank rushes to a urinal of the closestool under the action of gravitational potential energy. The flushing effect of the water tank flushing by the potential energy of water mainly depends on the potential energy, namely the potential energy is high, the flushing effect is good, the potential energy is low and the flushing effect is poor.

And low hidden water tank washing device, because of its water tank mounting height is low, the water level height is low, so the potential energy of water in the water tank is low, and it is poor to erode the effect, is difficult to match most closestool on the market. Some current hidden water tank washing devices increase the working water level as much as possible through enlarging the water tank outlet to achieve the effect of increasing the impulsive force, but the actual improvement effect is not obvious.

SUMMERY OF THE UTILITY MODEL

The utility model provides a water tank flushing device for solving the technical problem.

In order to achieve the above purpose, the utility model adopts the technical scheme that: a water tank flushing device comprises a flushing-assisting valve, a water tank with a water storage cavity, a drain valve for controlling the drainage of the water tank, a drainage channel communicated with the drain valve, a drain pipe of a urinal of a closestool and a starting mechanism for opening the flushing-assisting valve and the drain valve, wherein the flushing-assisting valve comprises a control mechanism and a first valve body provided with a water inlet channel and a water outlet channel, the water inlet channel is communicated with an external pressure water source, the water outlet channel is communicated with the urinal, the control mechanism comprises a floating barrel which is arranged in the water storage cavity and can move up and down between a high position and a low position and a limiting part which is movably arranged on the first valve body and can move between a limiting position and a yielding position; when the limiting piece is positioned at the limiting position, the floating barrel can be limited at a low position; when the limiting piece is located at the abdicating position, the limiting on the floating bucket can be released, so that the floating bucket can float to the high position; when the floating barrel is positioned at the high position, the control mechanism controls the water inlet channel to be communicated with the water outlet channel; when the floating barrel is located at the low position, the control mechanism controls the water inlet channel and the water outlet channel to be disconnected, and the limiting piece can be reset to the limiting position from the abdicating position; the starting mechanism drives the limiting piece to move from the limiting position to the yielding position so as to open the flushing assisting valve.

Preferably, the drain valve is in linkage fit with the limiting part, and the starting mechanism drives the limiting part to move from the limiting position to the abdicating position through the drain valve in the process of starting the drain valve by the starting mechanism; or, in the process that the starting mechanism starts the drain valve, the starting mechanism directly drives the limiting piece to move from the limiting position to the abdicating position; or, actuating mechanism includes first actuating mechanism and the second actuating mechanism of mutually independent setting, first actuating mechanism is used for opening the drain valve, the second actuating mechanism is used for driving the locating part by the limiting position activity extremely the position of stepping down.

Preferably, the flushing assisting valve further comprises a water stopping piece movably arranged on the first valve body and capable of moving between a water inlet position and a water stopping position, the water stopping piece and the first valve body are matched to form a back pressure cavity in a surrounding mode, a through-flow channel for communicating the water inlet channel and the back pressure cavity is arranged between the water inlet channel and the back pressure cavity, and a pressure relief hole is formed in the cavity wall of the back pressure cavity; when the water stop piece is positioned at the water inlet position, the water inlet channel is communicated with the water outlet channel; when the water stopping piece is positioned at the water stopping position, the water stopping piece disconnects the water inlet channel and the water outlet channel;

when the floating barrel is positioned at the high position, the control mechanism opens the pressure relief hole to control the water stop piece to move to the water inlet position; when the floating bucket is located at the low position, the control mechanism closes the pressure relief hole to control the water stop piece to move to the water stop position.

Preferably, the control mechanism further comprises a movable member movably arranged on the first valve body and matched with the pressure relief hole in an opening and closing manner, and the floating barrel is in linkage fit with the movable member; when the floating barrel rises to the high position, the movable piece is linked to open the pressure relief hole; when the floating bucket is located at the low position, the movable piece closes the pressure relief hole.

Preferably, when the floating barrel is located at the low position, the movable piece can reset to a position for closing the pressure relief hole under the action of the gravity of the movable piece; or a first elastic piece is arranged between the moving piece and the first valve body, and when the floating barrel is positioned at the low position, the moving piece can reset to a position for closing the pressure relief hole under the action of the first elastic piece; or the movable part is provided with a third balancing weight, and when the floating barrel is positioned at the low position, the movable part can be reset to the position for closing the pressure relief hole under the action of the third balancing weight; or, be equipped with the magnetic structure that attracts mutually or the magnetic structure that repels between moving part and the first valve body, the keg float is located when the low level, the moving part can be in the magnetic force effect of magnetic structure resets to closing the position of pressure release hole.

Preferably, the lower position of the floating bucket comprises a first falling position and a second falling position, and the height of the first falling position is higher than that of the second falling position; after the water tank finishes draining, the floating bucket falls to the second falling position along with the water level of the water tank; in the water inlet process of the water tank, the floating barrel rises along with the water level of the water tank and is limited at the first falling position by the limiting piece at the limiting position; when the floating barrel is located at the first falling position, under the action of the self gravity of the moving part, the elastic force of the first elastic part, the magnetic force of the magnetic structure or the gravity of the third balancing weight, the moving part tightly supports the first valve body and closes the pressure relief hole; when the floating barrel is located at the second falling position, the moving part tightly abuts against the first valve body and closes the pressure relief hole under the combined action of the self gravity of the moving part or the elastic force of the first elastic part or the magnetic force of the magnetic structure or the gravity of the third balancing weight and the gravity of the floating barrel.

Preferably, the movable part is a swing rod rotatably arranged on the first valve body;

one end of the swing rod is in linkage fit with the floating barrel, the other end of the swing rod is in open-close fit with the pressure relief hole, and the middle of the swing rod is rotatably connected with the first valve body; or one end of the swing rod is in linkage fit with the floating barrel, the other end of the swing rod is rotatably connected with the first valve body, and the middle of the swing rod is matched with the pressure relief hole in an opening and closing mode.

Preferably, the moving part is provided with a sealing gasket, and the sealing gasket is matched with the pressure relief hole in an opening and closing manner.

Preferably, the drain valve comprises a base arranged on the water tank, a second valve body arranged on the base, and a valve core arranged on the second valve body and capable of moving up and down between a rising position and a falling position, wherein the base is provided with the drain channel, and the valve core is provided with a butting part; the valve core can close the drainage channel when positioned at the descending position; the valve core can open the drainage channel when positioned at the ascending position; in the process that the starting mechanism drives the valve core to ascend from the descending position to the ascending position, the valve core can drive the limiting part to move from the limiting position to the yielding position through the butt joint of the abutting part and the limiting part.

Preferably, the abutting part is rotatably arranged on the valve core and can rotate between a first position and a second position; when the abutting part is located at the first position, the valve core can drive the limiting part to move from the limiting position to the abdicating position through the abutting fit of the abutting part and the limiting part; after the valve core drives the limiting part to move from the limiting position to the yielding position, the abutting part and the limiting part lose abutting fit; in the process that the valve core is reset from the ascending position to the descending position, the abutting part abuts against the limiting piece and rotates from the first position to the second position so as to give way to the limiting piece, and the valve core can continuously descend; when the valve core is reset to the descending position, the abutting part can be reset to the first position from the second position;

the abutting part can be reset from the second position to the first position under the action of the self gravity of the abutting part; or a third elastic piece is arranged between the abutting part and the valve core, and the abutting part can be reset to the first position from the second position under the action of the third elastic piece; or the abutting part is provided with a second balancing weight and can be reset to the first position from the second position under the action of the second balancing weight.

Preferably, the starting mechanism comprises a key which can be in butt fit with the limiting part, and the key is pressed to open the drain valve in the process, and the key is in butt fit with the limiting part to drive the limiting part to move from the limiting position to the yielding position.

Preferably, the limiting member is rotatably or slidably disposed on the first valve body.

Preferably, the limiting piece can be reset to the limiting position from the abdicating position under the action of the self gravity; or a second elastic piece is arranged between the limiting piece and the first valve body, and the limiting piece can be reset to the limiting position from the yielding position under the action of the second elastic piece; or, the locating part has first balancing weight, the locating part can be in under the effect of first balancing weight by the position of stepping down resets to limiting position.

Preferably, the flushing assisting valve and the drain valve are both arranged in the water storage cavity, and the flushing assisting valve is mounted on the drain valve.

Preferably, the water outlet channel is communicated with the urinal through the water drain pipe; or the water outlet channel is directly communicated with the urinal without the water drain pipe.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model has the advantages that the flushing-assisting valve is arranged, the water inlet channel of the flushing-assisting valve is communicated with the external pressure water source, and the water flow flowing out from the water outlet channel of the flushing-assisting valve is discharged to the urinal of the closestool, so that the water pressure assistance of the external pressure water source is utilized to flush the urinal of the closestool, and the flushing effect of the water tank flushing device with a lower position of the existing water tank can be effectively improved;

in addition, the flushing assisting valve comprises a control mechanism and a first valve body provided with a water inlet channel and a water outlet channel, the control mechanism further comprises a floating barrel which is arranged in the water storage cavity and can move up and down between a high position and a low position, and a limiting part which is movably arranged on the first valve body and can move between a limiting position and a yielding position, and the floating barrel can be limited at the low position when the limiting part is positioned at the limiting position; when the limiting piece is positioned at the abdicating position, the limiting on the floating barrel can be removed, so that the floating barrel can float to a high position; when the floating barrel is positioned at a high position, the control mechanism controls the water inlet channel to be communicated with the water outlet channel (namely controls the flushing assisting valve to be opened); when the floating barrel is located at a low position, the control mechanism controls the water inlet channel and the water outlet channel to be disconnected (namely, the control helps the flushing valve to be closed), the limiting part can be reset to the limiting position from the yielding position, the integral structure of the flushing valve designed in the way is simple, the control mechanism can reliably control the opening and closing of the flushing valve, and the flushing valve is easy to produce and manufacture.

2. The lower position of the floating bucket comprises a first falling position and a second falling position, the height of the first falling position is higher than that of the second falling position, and after the water tank finishes draining, the floating bucket falls to the second falling position along with the water level of the water tank; in the water inlet process of the water tank, the floating barrel rises along with the water level of the water tank and is limited at the first falling position by the limiting part at the limiting position, and the floating barrel is controlled by adopting the design concept, so that the control mechanism has a simple structure, is reliable to control and has a skillful concept; and after the floating barrel descends to the first falling position, along with the descending of the water level in the water storage cavity, the floating barrel continuously descends to the second falling position, so that the limiting part can be better reset to the limiting position.

Drawings

FIG. 1 is a schematic perspective view of the present invention after hiding a part of the housing of the water tank;

fig. 2 is a schematic three-dimensional structure diagram of the drain valve and the flushing-assisted valve according to the first embodiment of the present invention (in the drawing, the limiting member is located at the limiting position, the float bowl is located at the low position (specifically, at the first falling position), the valve core is located at the falling position, and the abutting portion is located at the first position);

fig. 3 is a cross-sectional view of the drain valve and the flushing-assisted valve according to the first embodiment of the present invention (the water stop member is located at the water stop position, the limiting member is located at the limiting position, the float bowl is located at the low position (specifically, at the first falling position), and the valve core is located at the falling position);

FIG. 4 is an enlarged partial schematic view at A of FIG. 3;

fig. 5 is a first schematic view of a first usage state of the first embodiment of the present invention (in the figure, the limiting member is located at the abdicating position, the float barrel floats up to the high position, the valve core is located at the ascending position, and the abutting portion is located at the first position);

fig. 6 is a schematic view of a second usage state of the first embodiment of the present invention (in the figure, the limiting member is located at the yielding position, the float bucket floats to the high position, and the valve core is located at the rising position);

fig. 7 is a third schematic view of a use state of the first embodiment of the present invention (in the figure, the limiting member is located at the limiting position, the float bowl is located at the low position (specifically, at the second falling position), and the valve core is located at the rising position and is about to fall);

fig. 8 is a fourth schematic view of a usage state of the first embodiment of the present invention (in the figure, the position-limiting element is located at the position-limiting position, the float bowl is located at the low position (specifically, at the second falling position), and the valve core is in the falling process, and the abutting portion is located at the second position);

fig. 9 is a schematic three-dimensional structure view of a drain valve and a flushing-assisted valve according to a second embodiment of the present invention (in the drawing, the limiting member is located at the limiting position, the float bowl is located at the low position (specifically, at the first falling position), and the valve core is located at the falling position);

FIG. 10 is an enlarged partial schematic view at B of FIG. 9;

fig. 11 is an exploded schematic view of a second embodiment of the present invention;

fig. 12 is a schematic view of a first usage state of a second embodiment of the present invention (in the figure, the limiting member is located at the abdicating position, the float barrel floats to the high position, and the valve core is located at the ascending position);

fig. 13 is a schematic view of a second usage state of the second embodiment of the present invention (in the figure, the limiting member is located at the yielding position, the float bucket floats to the high position, and the valve core is located at the rising position);

fig. 14 is a third schematic view of a use state of the second embodiment of the present invention (in the figure, the position-limiting element is located at the position-limiting position, the float bowl is located at the low position (specifically, at the second falling position), and the valve core is located at the ascending position and is about to fall or is located at the descending position);

fig. 15 is a fourth schematic view illustrating a usage status of the second embodiment of the present invention (in the figure, the position-limiting element is located at the position-limiting position, the float bowl is located at the low position (specifically, at the second falling position), and the valve core is located at the ascending position and is about to fall or is located at the descending position).

The reference numerals are illustrated below:

1-flushing-assisted valve, 111-floating barrel, 112-limiting piece, 113-first elastic piece, 114-screw rod, 12-first valve body, 121-water inlet channel, 122-water outlet channel, 13-water stop piece, 14-back pressure cavity, 15-pressure relief hole, 16-movable piece, 17-sealing pad, 2-water tank, 21-water storage cavity, 3-water discharge valve, 31-second valve body, 32-valve core, 321-valve rod, 322-valve plate, 33-abutting part, 34-base, 341-water discharge channel, 4-water discharge pipe, 5-overflow pipeline, 51-overflow gap, 6-water guide pipe, 7-water inlet valve and 8-key.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples; however, the present invention is not limited to the embodiment.

Example one

Referring to fig. 1 to 8, a tank flushing device of the present embodiment includes a flushing-assisting valve 1, a tank 2 having a water storage chamber 21, a drain valve 3 for controlling the drainage of the tank 2, a drain pipe 4 for communicating a drain passage 341 of the drain valve 3 with a toilet bowl (not shown) of a toilet (not shown), and an actuating mechanism (not shown) for opening the flushing-assisting valve 1 and the drain valve 3. The flushing-assisting valve 1 comprises a control mechanism and a first valve body 12, wherein the first valve body 12 is provided with a water inlet channel 121 and a water outlet channel 122, the control mechanism is used for controlling the connection or disconnection of the water inlet channel 121 and the water outlet channel 122, the water inlet channel 121 is communicated with an external pressure water source (not shown in the figure, for example, municipal tap water), and the water outlet channel 122 is communicated with a urinal. The control mechanism comprises a floating barrel 111 which is arranged in the water storage cavity 21 and can move up and down between a high position and a low position, and a limiting piece 112 which is movably arranged on the first valve body 12 and can move between a limiting position and a yielding position, wherein the floating barrel 111 rises or falls along with the change of the water level in the water storage cavity 21; when the limiting piece 112 is located at the limiting position, the floating barrel 111 can be limited at the low position; when the limiting piece 112 is located at the abdicating position, the limiting on the floating barrel 111 can be released, so that the floating barrel 111 can float to a high position; when the floating barrel 111 is at a high position, the control mechanism controls the water inlet passage 121 to be communicated with the water outlet passage 122; when the floating barrel 111 is at the low position, the control mechanism controls the water inlet channel 121 and the water outlet channel 122 to be disconnected, and at this time, the limiting member 112 can be reset to the limiting position from the abdicating position; the starting mechanism drives the limiting part 112 to move from the limiting position to the yielding position so as to open the flushing assisting valve 1. In the embodiment, the flushing-assisting valve 1 is arranged, the water inlet channel 121 of the flushing-assisting valve 1 is communicated with an external pressure water source, and water flowing out of the water outlet channel 122 of the flushing-assisting valve 1 is discharged to the urinal of the toilet, so that the toilet urinal is flushed by utilizing the hydraulic pressure assistance of the external pressure water source, and the flushing effect of the existing water tank flushing device with a lower water tank position can be effectively improved; and the flushing-assisting valve 1 is simple in integral structure and easy to produce and manufacture.

Specifically, in the present embodiment, the starting mechanism directly drives the drain valve 3 to open, and the drain valve 3 is in linkage fit with the limiting member 112; in the process that the starting mechanism drives the drain valve 3 to open the drain channel 341 to open the drain valve 3, the starting mechanism drives the limiting member 112 to move from the limiting position to the abdicating position through the drain valve 3 (that is, the starting mechanism indirectly drives the flushing assisting valve 1 to open through the drain valve 3).

Referring to fig. 2 to 8, in this embodiment, the flushing-assisting valve 1 further includes a water-stopping member 13 movably disposed on the first valve body 12 and capable of moving between a water inlet position and a water-stopping position, the water-stopping member 13 and the first valve body 12 cooperate to define a back pressure chamber 14, a through-flow passage (not shown) communicating the water inlet passage 121 and the back pressure chamber 14 is disposed between the water inlet passage 121 and the back pressure chamber 14, and a pressure-releasing hole 15 is disposed on a cavity wall of the back pressure chamber 14; when the water stop 13 is located at the water inlet position, the water inlet passage 121 is communicated with the water outlet passage 122; when the water stop member 13 is located at the water stop position, the water stop member 13 disconnects the water inlet passage 121 and the water outlet passage 122; when the floating barrel 111 is at a high position, the control mechanism opens the pressure relief hole 15 to control the water stop 13 to move to the water inlet position, so as to control the water inlet passage 121 and the water outlet passage 122 to be communicated; when the float 111 is at the low position, the control mechanism closes the pressure relief hole 15 to control the water stop member 13 to move to the water stop position, thereby controlling the water inlet passage 121 and the water outlet passage 122 to be disconnected.

Specifically, in this embodiment, the water stop 13 is a water stop pad, and the water stop 13 is provided with a through hole (not shown) which forms the through channel, through which the inlet water in the inlet channel 121 flows into the back pressure cavity 14; the flushing-assisting valve 1 in the embodiment is controlled to be opened and closed by using a pressure difference water inlet principle, when the control mechanism opens the pressure relief hole 15, the water stop piece 13 moves to a water inlet position under the action of the water pressure of the water inlet channel 121, and the water inlet channel 121 is communicated with the water outlet channel 122, so that the flushing-assisting valve 1 can realize water inlet; when the control mechanism closes the pressure relief hole 15, the water stop piece 13 moves to a water stop position under the action of the back pressure cavity 14, the water stop piece 13 cuts off the communication between the water inlet channel 121 and the water outlet channel 122, and the flushing assisting valve 1 realizes water stop. The working principle of the water stop or water inlet of the flush assisting valve 1 in this embodiment is the same as that of a water inlet valve used for controlling water inlet of a toilet water tank in the existing toilet water tank, and is well known in the art, and will not be described in detail here.

Referring to fig. 2 to 8, in the present embodiment, the control mechanism further includes a movable member 16 movably disposed on the first valve body 12 and opening and closing and cooperating with the pressure relief hole 15, and the floating barrel 111 is in linkage cooperation with the movable member 16; when the floating barrel 111 rises to the high position, the movable piece 16 is linked to move to open the pressure relief hole 15; when the float 111 is at the low position, the movable element 16 closes the pressure relief hole 15.

Referring to fig. 2 to 8, in the present embodiment, the movable element 16 is a swing link rotatably disposed on the first valve body 12, a first elastic element 113 is disposed between the movable element 16 and the first valve body 12, and the first elastic element 113 is specifically a spring; when the floating barrel 111 rises to a high position, the floating barrel 111 drives the movable piece 16 to rotate so as to open the pressure relief hole 15; when the float 111 is at the low position, the movable element 16 can be reset to a position for closing the pressure relief hole 15 under the action of the first elastic element 113.

Specifically, in the present embodiment, the lower position of the float 111 includes a first falling position and a second falling position, and the first falling position is higher in height than the second falling position; after the water tank 2 finishes draining, the floating barrel 111 falls to a second falling position along with the water level of the water tank 2; in the water inlet process of the water tank 2, the floating barrel 111 rises along with the water level of the water tank 2 and is limited at a first falling position by the limiting piece 112 at the limiting position; when the floating barrel 111 is located at the first falling position (at this time, the floating barrel 111 does not fall completely, and the floating barrel 111 is still in a floating state due to the buoyancy of water), under the elastic force of the first elastic member 113, the movable member 16 tightly abuts against the first valve body 12 and closes the pressure relief hole 15; when the float 111 is located at the second falling position (at this time, the float 111 falls completely), under the combined action of the elastic force of the first elastic member 113 and the gravity of the float 111, the movable member 16 abuts against the first valve body 12 and closes the pressure relief hole 15. In this embodiment, after the floating barrel 111 descends to the first falling position, along with the descending of the water level in the water storage cavity 21, the floating barrel 111 continues to descend to the second falling position, so that the limiting member 112 can be better reset to the limiting position. Of course, in other embodiments, the movable member may be slidably disposed on the first valve body.

Referring to fig. 1 to 8, in the present embodiment, the control mechanism further includes a screw 114, the floating barrel 111 is in linkage fit with the movable element 16 (i.e., the swing rod) through the screw 114, and the limiting member 112 is located at the limiting position and can be in limiting fit with the top of the screw 114 to limit the floating barrel 111 at the low position; one end of the swing rod is in linkage fit with the floating barrel 111 through a screw 114, the other end of the swing rod is in open-close fit with the pressure relief hole 15, and the middle part of the swing rod is rotatably connected with the first valve body 12; the movable member 16 is provided with a sealing gasket 17, that is, the other end of the swing rod is provided with the sealing gasket 17, and the sealing gasket 17 is in open-close fit with the pressure relief hole 15, so that the movable member 16 can be more reliably in open-close fit with the pressure relief hole 15.

Referring to fig. 1 to 8, in the present embodiment, the drain valve 3 includes a base 34 disposed on the water tank 2, a second valve body 31 attached to the base 34, and a valve core 32 disposed on the second valve body 31 and capable of moving up and down between a raised position and a lowered position, the base 34 is provided with a drain passage 341, and the valve core 32 is provided with an abutting portion 33; the valve element 32 can close the drain passage 341 when it is at the lowered position; the drain passage 341 can be opened when the valve element 32 is in the raised position; in the process that the starting mechanism driving valve element 32 rises from the descending position to the ascending position, the valve element 32 can drive the limiting element 112 to move from the limiting position to the yielding position through the abutting matching of the abutting part 33 and the limiting element 112 so as to relieve the limiting on the floating barrel 111, so that the starting mechanism driving valve element 32 opens the drainage channel 341 to open the drainage valve 3, the starting mechanism drives the limiting element 112 through the valve element 32 of the drainage valve 3 to move from the limiting position to the yielding position, the floating barrel 111 can float to the high position to control the communication of the water inlet channel 121 and the water outlet channel 122, and the synchronous opening of the flushing assisting valve 1 can be linked to flush the urinal together when the drainage valve 3 starts drainage. Specifically, in the present embodiment, the upper end opening of the drain passage 341 forms a drain port (not shown) of the drain valve 3, the valve element 32 includes a valve stem 321 and a valve sheet 322 connected to the bottom end of the valve stem 321, and the abutting portion 33 is specifically disposed at the top end of the valve stem 321; when the valve core 32 is located at the descending position, the valve sheet 322 closes the water outlet, thereby disconnecting the water storage chamber 21 and the water discharge passage 341 (i.e., closing the water discharge passage 341); when the valve body 32 is in the raised position, the valve sheet 322 opens the drain port, thereby communicating the water storage chamber 21 with the drain passage 341 (i.e., opening the drain passage 341).

Referring to fig. 1 to 8, in the present embodiment, the abutting portion 33 is rotatably disposed on the valve core 32 and can rotate between a first position and a second position relative to the valve core 32; when the abutting portion 33 is located at the first position, the valve core 32 can drive the limiting member 112 to move from the limiting position to the abdicating position through the abutting cooperation between the abutting portion 33 and the limiting member 112; after the valve core 32 drives the limiting part 112 to move from the limiting position to the yielding position, the abutting part 33 and the limiting part 112 lose the abutting fit; in the process that the valve core 32 is reset from the ascending position to the descending position, the abutting part 33 abuts against the limiting part 112 and rotates from the first position to the second position to give way to the limiting part 112, so that the valve core 32 can continuously descend to be reset to the descending position smoothly; when the spool 32 is returned to the lowered position, the abutment portion 33 can be returned from the second position to the first position. Specifically, in the present embodiment, the abutting portion 33 can be returned from the second position to the first position by its own weight. Of course, in other embodiments, a third elastic member may be disposed between the abutting portion and the valve core, and the abutting portion may be reset from the second position to the first position by the third elastic member; or the abutting part is provided with a second balancing weight and can be reset to the first position from the second position under the action of the second balancing weight.

Referring to fig. 1 to 8, in the present embodiment, the limiting member 112 is rotatably disposed on the first valve body 12; when the float 111 is at the low position, the limiting member 112 can be reset from the receding position to the limiting position under the action of its own weight. Of course, in other embodiments, the limiting member may be slidably disposed on the first valve body; or a second elastic element may be disposed between the limiting element and the first valve body, and the limiting element may be capable of returning from the abdicating position to the limiting position under the action of the second elastic element, or the limiting element may have a first balancing weight, and the limiting element may be capable of returning from the abdicating position to the limiting position under the action of the first balancing weight.

Referring to fig. 1 to 8, in the present embodiment, an overflow pipe 5 is further included, and the overflow pipe 5 is used for communicating the water storage cavity 21 with a urinal (not shown) of a toilet (not shown); the drain valve 3 and the flushing-assisting valve 1 are both arranged in the water storage cavity 21, and the flushing-assisting valve 1 is attached to the drain valve 3.

Specifically, in the present embodiment, the overflow pipe 5 is disposed in the water storage chamber 21, an inlet end (not shown) of the overflow pipe 5 is communicated with an upper portion of the water storage chamber 21, the inlet end of the overflow pipe 5 is located above a normal operating water level of the water storage chamber 21, and an outlet end (not shown) of the overflow pipe 5 is communicated with the drain passage 341, and is further communicated with the toilet bowl via the drain passage 341 and the drain pipe 4 in sequence; the overflow pipe 5 is integrally formed on the valve rod 321, so that the structure inside the water tank 2 is more compact and the arrangement is more reasonable. The outlet end of the overflow pipe 5 of the embodiment is communicated with the drainage channel 341, and a hole for the overflow pipe 5 to penetrate through does not need to be additionally formed on the wall of the water tank 2, so that the hidden danger of water leakage of the water tank 2 can be reduced.

Referring to fig. 1 to 8, in the present embodiment, the water outlet passage 122 is communicated with the urinal through the water outlet pipe 4; the urinal also comprises a water guide pipe 6, the water outlet channel 122 is communicated with the inlet end of the water guide pipe 6, the outlet end of the water guide pipe 6 is communicated with the drain pipe 4, and the water outlet channel 122 is further communicated with the urinal through the drain pipe 4. Of course, in the practical embodiment, the water outlet channel can also be directly communicated with the urinal without the drainage pipe.

Specifically, in the present embodiment, after the outlet end of the water conduit 6 sequentially passes through the overflow pipe 5 and the drain passage 341, the outlet end of the water conduit 6 is located in the drain pipe 4, so that the outlet end of the water conduit 6 is communicated with the toilet through the drain pipe 4, so that the water flow flowing out from the water outlet passage 122 of the flushing-assisted valve 1 is guided into the drain pipe 4 by using the overflow pipe 5, the water flow flowing out from the water outlet passage 122 and the water flow flowing out from the drain opening of the drain valve 3 converge in the drain pipe 4 and then flow together into the toilet, thereby increasing the impulsive force of the water flow towards the toilet and improving the flushing effect; an overflow gap 51 for communicating the water storage cavity 21 and the drainage channel 341 is formed between the pipe wall of the water guide pipe 6 and the pipe wall of the overflow pipeline 5; when the water level in the storage chamber 21 is higher than its normal operation level, the water in the storage chamber 21 flows out to the drain pipe 4 through the overflow gap 51 and finally flows to the toilet, thereby implementing the overflow function of the tank 2.

In this embodiment, referring to fig. 1, a water inlet valve 7 is disposed in the water storage cavity 21, and a water inlet of the water inlet valve 7 is also communicated with an external pressure water source.

The working principle of the embodiment is briefly described as follows:

in an initial state (i.e., in a normal state), water is stored in the water storage cavity 21, as shown in fig. 2 to 4, the valve element 32 of the drain valve 3 is located at a descending position to close the drain passage 341, the drain valve 3 stops water, the abutting portion 33 is located at a first position, the limiting member 112 is located at a limiting position, the float bowl 111 is located at a low position (specifically, at a first descending position), at this time, the float bowl 111 does not completely descend, the float bowl 111 is still in a floating state due to buoyancy of water, but the float bowl 111 is kept at the first descending position due to the limiting of the limiting member 112, under the action of elastic force of the first elastic member 113, the sealing gasket 17 on the movable member 16 tightly abuts against the first valve body 12 and closes the pressure relief hole 15, the water stopping member 13 moves to a water stopping position under the back pressure of the back pressure cavity 14 to cut off communication between the water inlet passage 121 and the water outlet passage 122, thereby assisting the flush valve 1 to stop water;

during flushing, the valve core 32 of the drain valve 3 is driven by the starting mechanism to rise from the descending position so as to open the drain channel 341 and open the drain valve 3, and further the water tank 2 is controlled to drain water; in the process of the valve core 32 rising, as shown in fig. 5 and fig. 6, the abutting portion 33 on the valve core 32 abuts and cooperates with the limiting member 112 to drive the limiting member 112 to rotate from the limiting position to the yielding position, at this time, the limiting member 112 relieves the limiting of the floating barrel 111, the floating barrel 111 floats upwards under the buoyancy of water, the floating barrel 111 drives one end of the movable member 16 to rise upwards through the screw 114, so that the sealing gasket 17 on the other end of the movable member 16 opens the pressure relief hole 15, the first elastic member 113 is compressed, the limiting member 112 is maintained at the yielding position through the screw 114 after the floating barrel 111 rises, the water stop member 13 moves to the water inlet position under the hydraulic pressure of the water inlet channel 121, the water inlet channel 121 is communicated with the water outlet channel 122, thereby controlling the flushing-assisted valve 1 to open while the drain valve 3 is opened, so that the water flow discharged from the drain channel 341 of the drain valve 3 and the water flow discharged from the water outlet channel 122 of the flushing-assisted valve 1 flush the toilet bowl simultaneously, the scouring force is greatly improved, and the scouring effect is improved; as shown in fig. 5, after the valve core 32 drives the limiting member 112 to rotate from the limiting position to the receding position, the abutting portion 33 and the limiting member 112 lose the abutting engagement, and the valve core 32 continues to rise to the rising position to complete the opening of the drain valve 3;

when the water level in the water storage cavity 21 drops to a certain height, the floating barrel 111 first starts to drop, after the floating barrel 111 drops to the first drop position, along with the continuous drop of the water level in the water tank 2, as shown in fig. 7, after the water tank 2 finishes draining, the floating barrel 111 drops to the second drop position, at this time, the floating barrel 111 completely drops, the floating barrel 111 no longer receives the buoyancy of water, the limiting member 112 resets from the yield position to the limiting position under the action of its own gravity, so as to limit the floating barrel 111 to float to the high position when the water tank 2 next enters water, meanwhile, the floating barrel 111 is linked with the moving member 16 to rotate, so that the sealing gasket 17 on the moving member 16 closes the hole 15 under the combined action of the gravity of the floating barrel 111 and the elastic force of the first elastic member 113, and the pressure relief valve 1 stops water; after the float 111 is lowered to the second falling position, the valve element 32 starts to be lowered, and in the process that the valve element 32 is reset from the rising position to the falling position, as shown in fig. 8, the abutting portion 33 abuts against the limiting member 112 and rotates from the first position to the second position to give way to the limiting member 112, so that the valve element 32 can be smoothly reset to the falling position to close the drainage channel 341 of the drainage valve 3; after the valve core 32 is reset to the descending position (i.e. the drain valve 3 closes the drain passage 341), the abutting portion 33 is rotated and reset from the second position to the first position under the action of its own weight; subsequently, the inlet valve 7 is opened to replenish water into the water storage cavity 21, and as the water level in the water storage cavity 21 rises, the floating barrel 111 floats from the second falling position to the first falling position due to the buoyancy of the water, and the limiting member 112 at the limiting position limits the floating barrel 111 at the first falling position, so that the tank flushing device is restored to the initial state.

In other embodiments, it can also be set as: when the floating barrel is positioned at a low position, the movable piece can reset to a position for closing the pressure relief hole under the action of the gravity of the movable piece; and further configured to: when the floating barrel is located at the first falling position, the movable piece tightly abuts against the first valve body and closes the pressure relief hole under the action of the self gravity of the movable piece; when the floating bucket was located the second whereabouts position, under the combined action of the self gravity of moving part and the gravity of floating bucket, the moving part tightly supported first valve body and closed the pressure release hole.

In other embodiments, it can also be set as: the movable part is provided with a third balancing weight, and when the floating barrel is positioned at a low position, the movable part can be reset to a position for closing the pressure relief hole under the action of the third balancing weight; and further configured to: when the floating barrel is located at the first falling position, the movable piece tightly abuts against the first valve body and closes the pressure relief hole under the action of the gravity of the third balancing weight; when the floating bucket is located the second whereabouts position, under the combined action of the gravity of third balancing weight and the gravity of floating bucket, the moving part tightly supports first valve body and closes the pressure release hole.

In other embodiments, it can also be set as: an attractive magnetic structure or a repulsive magnetic structure is arranged between the moving part and the first valve body, and when the floating barrel is positioned at a low position, the moving part can be reset to a position for closing the pressure relief hole under the action of the magnetic force of the magnetic structure; and further configured to: when the floating barrel is located at the first falling position, the movable piece tightly abuts against the first valve body and closes the pressure relief hole under the action of the magnetic force of the magnetic structure; when the floating bucket is located the second whereabouts position, under the combined action of the magnetic force of magnetic structure and the gravity of floating bucket, the moving part tightly supports first valve body and closes the pressure release hole.

In other embodiments, the abutting portion may be fixedly disposed at the top end of the valve rod instead of being rotatably disposed at the top end of the valve rod, so that when the valve element is located at the ascending position, the abutting portion always abuts against the limiting member, so that the limiting member is kept at the yielding position; after the valve core is reset to the descending position, the limiting piece can be reset to the limiting position under the action of the gravity of the limiting piece.

Example two

The present embodiment is substantially the same as the first embodiment, and the difference is only that:

referring to fig. 9 to 15, in the present embodiment, the starting mechanism drives the valve element 32 and the limiting member 112 of the drain valve 3 to move respectively, and in the process that the starting mechanism drives the drain valve 3 to open the drain channel 341 to open the drain valve 3, the starting mechanism directly drives the limiting member 112 to move from the limiting position to the receding position. Specifically, in this embodiment, the starting mechanism includes a key 8 capable of abutting against and matching with the limiting member 112, the key 8 is linked with the valve element 32, and when the key 8 is pressed to link the valve element 32 to ascend from a descending position to an ascending position to open the drain valve 3, the key 8 abuts against and matches with the limiting member 112 to drive the limiting member 112 to move from the limiting position to a yielding position, so that the limiting member 112 is directly driven to move from the limiting position to the yielding position in the process of opening the drain valve 3 by the starting mechanism; when the valve core 32 is lifted to the lifting position, the key 8 can be automatically reset.

Referring to fig. 9 to 15, in the present embodiment, one end of the swing rod is in linkage fit with the floating barrel 111, the other end of the swing rod is rotatably connected with the first valve body 12, the gasket 17 is disposed in the middle of the swing rod, and the gasket 17 in the middle of the swing rod is in open-close fit with the pressure relief hole 15.

Referring to fig. 9 to 15, in the present embodiment, the overflow pipe 5 is formed separately and then attached to the base 34 of the drain valve 3; the outlet end of the water conduit 6 and the outlet end of the overflow conduit 5 are directly communicated with the drainage passage 341 respectively.

In this embodiment, the structures and principles of the remaining portions not described are consistent with the embodiment, and are not described herein again.

In other embodiments, it may be further provided that the actuating mechanism includes a first actuating mechanism (not shown) and a second actuating mechanism (not shown) that are independently arranged, the first actuating mechanism is configured to drive the drain valve to open the drain channel to open the drain valve, and the second actuating mechanism is configured to drive the limiting member to move from the limiting position to the abdicating position. The advantage of designing like this is, when driving first actuating mechanism and second actuating mechanism simultaneously, can utilize the help towards valve to assist towards the time when the drainage valve control water tank drainage, when only driving first actuating mechanism, then help towards valve inoperative, only utilize through the drainage valve control water tank discharged water to wash the closestool, the user can select whether to utilize the help towards valve to assist towards as required.

Compared with the prior art, the utility model has the advantages that the flushing-assisting valve is arranged, the water inlet channel of the flushing-assisting valve is communicated with the external pressure water source, and the water flowing out from the water outlet channel of the flushing-assisting valve is discharged to the urinal of the toilet, so that the toilet urinal is flushed under the assistance of the water pressure of the external pressure water source, and the flushing effect of the existing water tank flushing device with a lower water tank position can be effectively improved; in addition, the flushing assisting valve comprises a control mechanism and a first valve body provided with a water inlet channel and a water outlet channel, the control mechanism further comprises a floating barrel which is arranged in the water storage cavity and can move up and down between a high position and a low position, and a limiting part which is movably arranged on the first valve body and can move between a limiting position and a yielding position, and the floating barrel can be limited at the low position when the limiting part is positioned at the limiting position; when the limiting piece is positioned at the abdicating position, the limiting on the floating barrel can be removed, so that the floating barrel can float to a high position; when the floating barrel is positioned at a high position, the control mechanism controls the water inlet channel to be communicated with the water outlet channel (namely controls the flushing assisting valve to be opened); when the floating barrel is located at a low position, the control mechanism controls the water inlet channel and the water outlet channel to be disconnected (namely, the control helps the flushing valve to be closed), the limiting part can be reset to the limiting position from the yielding position, the integral structure of the flushing valve designed in the way is simple, the control mechanism can reliably control the opening and closing of the flushing valve, and the flushing valve is easy to produce and manufacture.

The above embodiment is only used to further explain the utility model discloses a water tank flushing device, but the utility model discloses not limited to the embodiment, all according to the utility model discloses a technical essence does any simple modification, equivalent change and modification to above embodiment, all fall into the technical scheme's of the utility model protection within range.

Claims (14)

1. A water tank flushing device is characterized by comprising a flushing-assisting valve, a water tank with a water storage cavity, a drain valve for controlling the drainage of the water tank, a drain pipe for communicating a drain channel of the drain valve with a urinal of a closestool, and a starting mechanism for opening the flushing-assisting valve and the drain valve, wherein the flushing-assisting valve comprises a control mechanism and a first valve body provided with a water inlet channel and a water outlet channel, the water inlet channel is communicated with an external pressure water source, the water outlet channel is communicated with the urinal, the control mechanism comprises a floating barrel which is arranged in the water storage cavity and can move up and down between a high position and a low position, and a limiting part which is movably arranged on the first valve body and can move between a limiting position and a yielding position; when the limiting piece is positioned at the limiting position, the floating barrel can be limited at a low position; when the limiting piece is located at the abdicating position, the limiting on the floating bucket can be released, so that the floating bucket can float to the high position; when the floating barrel is positioned at the high position, the control mechanism controls the water inlet channel to be communicated with the water outlet channel; when the floating barrel is positioned at the low position, the control mechanism controls the water inlet channel and the water outlet channel to be disconnected, and the limiting piece can be reset to the limiting position from the abdicating position; the starting mechanism drives the limiting part to move from the limiting position to the abdicating position so as to open the flushing assisting valve.

2. The water tank flushing device according to claim 1, wherein the drain valve is in linkage fit with the limiting member, and when the starting mechanism starts the drain valve, the starting mechanism drives the limiting member to move from the limiting position to the abdicating position through the drain valve; or, in the process that the starting mechanism starts the drain valve, the starting mechanism directly drives the limiting piece to move from the limiting position to the abdicating position; or, actuating mechanism includes first actuating mechanism and the second actuating mechanism of mutually independent setting, first actuating mechanism is used for opening the drain valve, the second actuating mechanism is used for driving the locating part by the limiting position activity extremely the position of stepping down.

3. The cistern flushing device of claim 1, wherein the flush-assist valve further comprises a water stop member movably disposed on the first valve body and movable between a water inlet position and a water stop position, the water stop member and the first valve body cooperate to define a back pressure chamber, a through-flow passage communicating the water inlet passage and the back pressure chamber is disposed between the water inlet passage and the back pressure chamber, and a pressure relief hole is disposed on a wall of the back pressure chamber; when the water stop piece is positioned at the water inlet position, the water inlet channel is communicated with the water outlet channel; when the water stopping piece is positioned at the water stopping position, the water stopping piece disconnects the water inlet channel and the water outlet channel;

when the floating barrel is positioned at the high position, the control mechanism opens the pressure relief hole to control the water stop piece to move to the water inlet position; when the floating bucket is located at the low position, the control mechanism closes the pressure relief hole to control the water stop piece to move to the water stop position.

4. A cistern flushing device as defined in claim 3, wherein said control mechanism further comprises a movable member movably mounted on said first valve body and cooperating with said pressure relief hole in an opening and closing manner, said float bowl cooperating with said movable member in a linkage manner; when the floating barrel rises to the high position, the movable piece is linked to open the pressure relief hole; when the floating barrel is located at the low position, the movable piece closes the pressure relief hole.

5. The cistern flushing device according to claim 4, wherein when the float is in the low position, the movable member is capable of returning to a position closing the pressure relief hole under its own weight; or a first elastic piece is arranged between the moving piece and the first valve body, and when the floating barrel is positioned at the low position, the moving piece can be reset to a position for closing the pressure relief hole under the action of the first elastic piece; or the movable part is provided with a third balancing weight, and when the floating barrel is positioned at the low position, the movable part can be reset to a position for closing the pressure relief hole under the action of the third balancing weight; or, be equipped with the magnetic structure that attracts mutually or the magnetic structure that repels between moving part and the first valve body, the keg float is located when the low level, the moving part can be in the magnetic force effect of magnetic structure resets to closing the position of pressure release hole.

6. The tank flushing device of claim 5 wherein the low position of the float comprises a first drop position and a second drop position, the first drop position being higher in elevation than the second drop position; after the water tank finishes draining, the floating bucket falls to the second falling position along with the water level of the water tank; in the water tank water inlet process, the floating barrel rises along with the water level of the water tank and is limited at the first falling position by the limiting piece at the limiting position; when the floating barrel is located at the first falling position, under the action of the self gravity of the moving part, the elastic force of the first elastic part, the magnetic force of the magnetic structure or the gravity of the third balancing weight, the moving part tightly supports the first valve body and closes the pressure relief hole; when the floating barrel is located at the second falling position, under the combined action of the self gravity of the moving part or the elastic force of the first elastic part or the magnetic force of the magnetic structure or the gravity of the third balancing weight and the gravity of the floating barrel, the moving part tightly supports the first valve body and closes the pressure relief hole.

7. The cistern flushing device of claim 4, wherein the movable member is a swing lever rotatably provided on the first valve body;

one end of the swing rod is in linkage fit with the floating barrel, the other end of the swing rod is in open-close fit with the pressure relief hole, and the middle of the swing rod is rotatably connected with the first valve body; or one end of the swing rod is in linkage fit with the floating barrel, the other end of the swing rod is rotatably connected with the first valve body, and the middle of the swing rod is matched with the pressure relief hole in an opening and closing mode.

8. The tank flushing device according to claim 2, wherein the drain valve includes a base provided on the tank, a second valve body attached to the base, and a valve body provided on the second valve body and capable of moving up and down between a raised position and a lowered position, the base being provided with the drain passage, the valve body being provided with an abutting portion; the valve core can close the drainage channel when positioned at the descending position; the valve core can open the drainage channel when positioned at the ascending position; in the process that the starting mechanism drives the valve core to ascend from the descending position to the ascending position, the valve core can drive the limiting part to move from the limiting position to the yielding position through the butt joint of the abutting part and the limiting part.

9. The tank flushing device of claim 8 wherein said abutment is rotatably disposed on said valve cartridge and is rotatable between a first position and a second position; when the abutting part is located at the first position, the valve core can drive the limiting part to move from the limiting position to the abdicating position through the abutting fit of the abutting part and the limiting part; after the valve core drives the limiting piece to move from the limiting position to the yielding position, the abutting part and the limiting piece lose abutting fit; in the process that the valve core is reset from the ascending position to the descending position, the abutting part abuts against the limiting piece and rotates from the first position to the second position so as to give way to the limiting piece, and the valve core can continuously descend; when the valve core is reset to the descending position, the abutting part can be reset to the first position from the second position;

the abutment is capable of returning from the second position to the first position under its own weight; or a third elastic piece is arranged between the abutting part and the valve core, and the abutting part can be reset from the second position to the first position under the action of the third elastic piece; or the abutting part is provided with a second balancing weight and can be reset to the first position from the second position under the action of the second balancing weight.

10. The flushing device for water tank as claimed in claim 2, wherein the actuating mechanism includes a button capable of engaging with the limiting member, and when the button is pressed to open the drain valve, the button engages with the limiting member to drive the limiting member to move from the limiting position to the receding position.

11. A cistern flushing device as claimed in any one of claims 1 to 10, wherein the retaining member is rotatably or slidably mounted on the first valve body.

12. A cistern flushing device as claimed in any one of claims 1 to 10, wherein the retaining member is capable of returning from the out-of-position to the retaining position under its own weight; or a second elastic piece is arranged between the limiting piece and the first valve body, and the limiting piece can be reset to the limiting position from the abdicating position under the action of the second elastic piece; or, the locating part has first balancing weight, the locating part can be in under the effect of first balancing weight by the position of stepping down resets to limiting position.

13. A cistern flushing device as claimed in any one of claims 1 to 10, wherein the flushing assist valve and the drain valve are both located within the water storage chamber, the flushing assist valve being attached to the drain valve.

14. The tank flushing device according to any one of claims 1 to 10, wherein the outlet passage communicates with the bowl through the drain pipe; or the water outlet channel is directly communicated with the urinal without the water drain pipe.

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