CN113136929B - Water inlet valve fixed on water discharge valve - Google Patents

Abstract

The invention discloses a water inlet valve fixed on a drain valve, which comprises a valve body and a buoyancy valve control mechanism, wherein a water inlet cavity and a water discharge cavity are arranged in the valve body, the water inlet cavity is provided with a water inlet, the water discharge cavity is provided with a water outlet, the buoyancy valve control mechanism controls the on-off of a water path between the water inlet cavity and the water discharge cavity, the valve body is arranged on an overflow pipe of the drain valve of a toilet water tank, the water inlet is communicated with a household water pipe network through a water inlet pipe with a connecting function, and the water outlet is positioned outside the overflow pipe and is communicated with the toilet water tank. According to the invention, the water inlet valve is arranged on the overflow pipe, so that a supporting pipe between the water inlet valve and the toilet bowl is omitted, the water inlet valve is directly arranged on the overflow pipe of the water discharge valve, and materials and installation space are saved.

Description

Water inlet valve fixed on water discharge valve

Technical Field

The invention relates to the technical field of water inlet valves of toilet water tanks, in particular to a water inlet valve fixed on a water discharge valve.

Background

At present, a water inlet valve and a water outlet valve are mostly arranged in a common toilet water tank, the water inlet valve is communicated with a household water pipe network, water in the household water pipe network is introduced into the toilet water tank to replenish water for the toilet water tank, the water outlet valve is communicated to a toilet seat, water stored in the toilet water tank is discharged to the toilet seat, and the toilet seat is flushed.

The water discharge valve is generally provided with an overflow pipe, the overflow pipe extends upwards from the bottom of the water discharge valve for a certain height, the top of the overflow pipe is provided with an overflow port, and the overflow port is communicated to the toilet seat through an overflow pipe so as to prevent water in the toilet water tank from overflowing due to the failure of the water inlet valve.

The water inlet valve is generally divided into a bottom water inlet type water inlet valve and a side water inlet type water inlet valve, wherein a vertical supporting pipe fixed with the bottom of a toilet water tank is arranged below a valve body of the bottom water inlet type water inlet valve, the supporting pipe extends upwards to a certain height in the toilet water tank, a water inlet pipe and a water outlet pipe are arranged in the supporting pipe of the bottom water inlet type water inlet valve, the water inlet pipe is communicated with a household water pipe network through a water inlet, and a water outlet hose is communicated with the toilet water tank through a water outlet; the side water inlet valve is provided with a horizontal supporting pipe fixed with the side wall of the toilet water tank at the side part of the valve body, the horizontal supporting pipe is communicated with a household water pipe network through a water inlet, the side water inlet valve is also provided with a water outlet hose below the valve body, and the water outlet hose is communicated with the toilet water tank through a water outlet.

The water inlet valve and the water discharge valve cooperate with each other to realize water inlet and water discharge of the toilet water tank, but the water inlet valve and the water discharge valve which are respectively and independently arranged occupy larger space and are not beneficial to material saving and cost control.

Disclosure of Invention

The present invention has been made in view of the above problems, and it is an object of the present invention to provide a fill valve fixed to a drain valve, which overcomes the above disadvantages and omits a support pipe for fixing the fill valve to a toilet tank.

In order to achieve the above purpose, the solution of the invention is as follows: the utility model provides a fix water intaking valve on drain valve, includes valve body, buoyancy valve control mechanism, be equipped with intake antrum, drainage chamber in the valve body, the intake antrum be equipped with the water inlet, drainage chamber be equipped with the delivery port, buoyancy valve control mechanism control intake antrum, the water route break-make between the drainage chamber, the valve body is installed on the overflow pipe of closestool water tank drain valve, the inlet tube and the domestic water pipe network switch-on of water inlet through playing the connection, the delivery port be located the overflow pipe and access to closestool water tank outward.

Furthermore, the water inlet pipe is a water inlet hose, one end of the water inlet pipe is connected with the water inlet, one end of the water inlet pipe is provided with a sleeve joint, and the water inlet pipe is communicated with a household water pipe network through the sleeve joint; the water outlet is communicated with the toilet water tank through a water outlet hose positioned outside the overflow pipe.

Further, the valve body is rotatably mounted on the overflow pipe.

Further, the overflow pipe comprises a fixed pipe and a movable sleeve, the fixed pipe is arranged on the base of the drainage valve, the movable sleeve is sleeved on the fixed pipe, the valve body is rotatably arranged on the movable sleeve, and the movable sleeve moves up and down relative to the fixed pipe to adjust the height of the valve body in the toilet water tank.

Further, the water inlet cavity is located in the center of the valve body, the water drainage cavity surrounds the outer side of the water inlet cavity, the water inlet cavity and the water drainage cavity are communicated with the water stop, and the buoyancy valve control mechanism controls the water stop to be opened or closed.

Furthermore, the water inlet cavity and the water drainage cavity extend in the valve body along the horizontal direction, the water inlet is positioned at one end of the water inlet cavity, which extends horizontally, the water stop port is positioned at the other end of the water inlet cavity, and a mounting port is arranged outside the water stop port;

the buoyancy valve control mechanism comprises a backpressure valve and a buoyancy control mechanism, the backpressure valve is installed in the installation port in a sealing mode, and the buoyancy control mechanism controls the opening or closing of the water port through the backpressure valve.

Further, the back pressure valve comprises a water stop cover, a water stop pad, a first rotating arm, a second rotating arm and a back pressure pad, the water stop cover is clamped in the mounting opening, the water stop pad is arranged at the water stop opening, the water stop pad is buckled with the water stop cover to form a back pressure cavity, the water stop pad is provided with a water through hole for communicating the water inlet cavity with the back pressure cavity, and the water stop cover is provided with a back pressure hole for communicating the back pressure cavity with the outside; the first rotating arm is parallel to the end face of the water stop cover and is pivoted to one side of the water stop cover through a first rotating shaft, the first rotating shaft divides the first rotating arm into a long arm and a short arm, the end part of the long arm is a free end, the second rotating arm is parallel to the end face of the water stop cover and is pivoted to the other side of the water stop cover through a second rotating shaft positioned at one end of the second rotating arm, the other end of the second rotating arm spans across a back pressure hole to be connected with the short arm of the first rotating arm in a sliding mode and hooped to two sides of the water stop cover, and the second rotating arm is provided with a back pressure pad corresponding to the back pressure hole;

the buoyancy control mechanism further comprises a water tank, a buoy screw and a water tank bolt; the water tank is movably sleeved on the overflow pipe, the buoy falls into the water tank, and the bottom of the water tank is provided with a one-way valve; the upper part of the float bowl screw rod is movably fixed on the valve body and is abutted against the long arm end of the first rotating arm, the lower part of the float bowl screw rod extends to form a screw rod thread section for screwing the float bowl, the float bowl moves up and down in the water tank to drive the float bowl screw rod to move up and down on the valve body, so that the first rotating arm and the second rotating arm are driven to rotate on the water stop cover, and the back pressure pad is driven to seal or open the back pressure hole; the upper part of the water tank bolt is rotationally fixed on the valve body, and a bolt thread section with the opposite rotation direction to the screw thread section is arranged below the water tank bolt and is used for screwing the water tank; meshing transmission between flotation pontoon screw rod upper portion and the water tank bolt upper portion rotates flotation pontoon screw rod or water tank bolt, and then drives the water tank of connecting on the water tank bolt, the flotation pontoon of connecting on the flotation pontoon screw rod and slides from top to bottom along the overflow pipe.

Further, the water receiving tank of valve body including being located its below, the water receiving tank below is equipped with the annular portion of cup jointing, the valve physical stamina is cup jointed at the overflow pipe top through the rotation of annular portion of cup jointing, water receiving tank lateral wall opening, the opening accesss to the overflow mouth, the water receiving tank will the back pressure hole exhaust rivers of back pressure valve are introduced the overflow pipe.

Furthermore, the drainage cavity on the valve body is divided into an upper part and a lower part, the drainage cavity on the lower part is provided with the water outlet, the drainage cavity on the lower part is provided with a water guide port extending to the top of the valve body, the drainage cavity on the upper part is provided with an anti-siphon port communicated to the top of the valve body, the anti-siphon port and the water guide port are provided with an anti-siphon cavity above, the anti-siphon cavity is internally provided with an anti-siphon pad, the anti-siphon pad is placed on the anti-siphon port, an anti-siphon cover is buckled above the anti-siphon cavity and arranged on the outer wall of the valve body, the anti-siphon cover is provided with an air inlet above the anti-siphon pad, when water flows out from the anti-siphon port, water pressure can be generated in the anti-siphon cavity, the anti-siphon pad is lifted to be separated from the anti-siphon port and block the air inlet, the anti-siphon port is communicated with the anti-siphon port, when the water stops flowing out from the anti-siphon port, the water pressure in the anti-siphon cavity disappears, the anti-siphon pad falls to block the air inlet and the water guide port is communicated with the outside.

Furthermore, a water supplementing channel communicated with the drainage cavity is arranged below the valve body, and the water supplementing channel is directly positioned above an overflow port of the overflow pipe; the moisturizing passageway in be equipped with the moisturizing knob, be equipped with the regulation hole on the moisturizing knob, moisturizing knob one end extends outside the moisturizing passageway, is connected with the rotatory handle of control moisturizing knob, rotatory moisturizing knob changes the dislocation angle of regulation hole and moisturizing passageway to change the moisturizing proportion of moisturizing passageway.

After the scheme is adopted, the invention has the beneficial effects that: the valve body of the water inlet valve is directly connected to an overflow pipe of a drain valve of the toilet water tank, so that a supporting pipe for fixing the water inlet valve on the toilet water tank is omitted, the installation space is saved, and the use of materials is saved; the water inlet pipe only plays a role in pipeline connection, a hose which is universal in the industry can be adopted, if the toilet water tank is of a bottom water inlet type, a water inlet connector on the hose is fixed with the bottom of the toilet water tank to be communicated with a household water pipe network, and if the toilet water tank is of a side water inlet type, the water inlet connector on the hose is fixed with the side part of the toilet water tank to be communicated with the household water pipe network, so that the invention is suitable for both the bottom water inlet type toilet water tank and the side water inlet type toilet water tank, and saves the cost of opening a plurality of molds.

Drawings

FIG. 1 is a schematic structural diagram of embodiment 1 of the present invention;

FIG. 2 is a schematic structural diagram of embodiment 2 of the present invention;

FIG. 3 is an exploded view of the valve body and buoyancy control mechanism of the present invention;

FIG. 4 is a cross-sectional view of the valve body and buoyancy control mechanism of the present invention;

FIG. 5 is an exploded view of the back pressure valve of the present invention;

FIG. 6 is an exploded view of an overflow tube according to embodiment 1 of the present invention;

FIG. 7 (a) is a schematic view of the structure of the tank and the pontoon of the invention;

FIG. 7 (b) is a schematic view of the structure of the stopper of the present invention;

FIG. 8 (a) is a schematic view of the refill knob of the present invention installed;

FIG. 8 (b) is a sectional view of the refill knob of the present invention;

FIG. 9 (a) is an installation sectional view of the refill knob of the present invention in another direction;

FIG. 9 (b) is a schematic view showing the installation position of the packing of the present invention;

fig. 10 is a schematic view of the internal water path of the valve body of the present invention.

Description of reference numerals:

1-overflow port, 2-buoyancy valve control mechanism, 21-water tank, 211-through hole, 212-water tank link hole, 22-float, 221-float link hole, 23-float screw, 233-water stop slider, 234-water stop chute, 24-water tank bolt, 25-check valve, 3-drain valve, 4-overflow pipe, 41-fixed pipe, 411-positioning tooth, 412-projection, 42-movable sleeve, 421-snap tooth, 422-snap groove, 5-valve body, 51-water inlet, 52-water outlet, 53-water inlet cavity, 531-water stop, 54-water outlet cavity, 55-mounting port, 56-water receiving groove, 563-valve body mounting hole, 564-annular socket joint part, 565-limit part, 566-float screw limit hole, 567-tank bolt limiting hole, 568-tank bolt connecting groove, 57-valve body mounting pin, 58-water supplementing channel, 580-elastic clamping tooth, 581-water supplementing knob, 582-handle, 583-adjusting hole, 584-water supplementing knob mounting hole, 585-deflector rod, 586-maximum water level limiting block, 587-minimum water level limiting block, 588-scale line, 589-pointer, 590-sealing ring, 59-sealing plug, 591-anti-siphon pad, 592-anti-siphon cover, 593-anti-siphon cavity, 594-anti-siphon suction port, 595-water guide port, 598-air inlet, 6-back pressure valve, 61-water stopping cover, 611-first pivot hole, 612-second pivot hole, 613-water stopping slide rail, 62-water stop pad, 63-first rotating arm, 631-first rotating shaft, 632-long arm, 633-short arm, 634-sliding chute, 64-second rotating arm, 641-second rotating shaft, 642-sliding column, 65-back pressure pad, 66-back pressure cavity, 67-water through hole, 68-back pressure hole, 7-water outlet hose, 8-water inlet pipe and 9-buoyancy control mechanism.

Detailed Description

The invention is described in detail below with reference to the drawings and specific embodiments.

Specific example 1:

as shown in fig. 1 and 4, the invention relates to a water inlet valve fixed on a water discharge valve, which comprises a valve body 5 and a buoyancy valve control mechanism 2, wherein a water inlet cavity 53 and a water discharge cavity 54 are arranged in the valve body 5, the water inlet cavity 53 is provided with a water inlet 51, the water discharge cavity 54 is provided with a water outlet 52, the buoyancy valve control mechanism 2 controls the on-off of a water path between the water inlet cavity 53 and the water discharge cavity 54, the valve body 5 is arranged on an overflow pipe 4 of the water discharge valve of a toilet water tank, so that the valve body 5 is supported and fixed by the overflow pipe 4, the water inlet 51 is communicated with a household water pipe network through a water inlet pipe 8 which plays a role in connection, and the water outlet 52 is positioned outside the overflow pipe 4 and communicated with the toilet water tank.

Specifically, as shown in fig. 3 and 4, the water inlet cavity 53 is located in the center of the valve body 5, the water discharge cavity 54 is surrounded outside the water inlet cavity 53, the water inlet cavity 53 and the water discharge cavity 54 extend in the horizontal direction, a water inlet 51 is arranged at one end of the water inlet cavity 53 extending horizontally, the water inlet 51 is externally sleeved with a water inlet pipe 8, the water inlet pipe 8 is a hose, the water inlet pipe 8 can be a rigid pipe, one end of the water inlet pipe 8 is connected with the water inlet 51, the other end of the water inlet pipe 8 is provided with a socket joint, the water inlet pipe 8 is connected with a household water pipe network through the socket joint, the socket joint can be any one of the existing hose joints, which is not specifically illustrated in this embodiment, when the toilet water tank is in a side water inlet form, the water inlet pipe 8 is arranged to be communicated with a corresponding position of the side wall of the toilet water tank, when the toilet water tank is used as a bottom water inlet, the water inlet pipe 8 is arranged to be communicated with a corresponding position of the bottom surface of the toilet water tank, so that the water inlet valve in the embodiment is used for toilet water tanks with different installation forms, only the water inlet pipe 8 needs to be bent to a proper position, the water outlet cavity 54 is provided with a water outlet 52 at the lower side of the valve body 5, the water outlet 52 is positioned outside the overflow pipe 4, the outer side of the water outlet 52 is inserted with a water outlet hose 7, the water outlet hose 7 can also be a rigid pipe, the length of the water outlet hose 7 can be correspondingly set according to the actual installation space of the toilet water tank, and the water inlet cavity 53 and the water outlet cavity 54 are communicated at a water stop 531 positioned at the other end of the water inlet cavity 53;

the buoyancy valve control mechanism 2 comprises a backpressure valve 6 and a buoyancy control mechanism 9, the backpressure valve 6 is used for plugging or opening the water stopping port 531, the valve body 5 is provided with an installation port 55 outside the water stopping port 531, the backpressure valve 6 is installed in the installation port 55 in a sealing mode, and the welfare control mechanism 9 controls the opening or closing of the water stopping port through the backpressure valve 6.

As shown in fig. 3, 4 and 5, the back pressure valve 6 includes a water stop cover 61, a water stop pad 62, a first rotating arm 63, a second rotating arm 64 and a back pressure pad 65, the water stop cover 61 is clamped in the mounting opening 55, one side of the water stop pad 62 abuts against the water stop opening 531, the other side of the water stop pad 62 is fastened with the water stop cover 61 to form a back pressure cavity 66, the water stop pad 62 is provided with a water through hole 67 communicating the water inlet cavity 53 and the back pressure cavity 66, and the water stop cover 61 is provided with a back pressure hole 68 communicating the back pressure cavity 66 with the outside; when the back pressure hole 68 is blocked, water flow in the water inlet cavity 53 enters the back pressure cavity 66 through the water through hole 67 under the action of water pressure, the water pressure of the back pressure cavity 66 rises, the water pressure pushes the water stop pad 62 to block the water stop hole 531, the water inlet cavity 53 stops water inflow to the water discharge cavity 54, when the back pressure hole 68 is opened, the back pressure cavity 66 is communicated with the outside, the water pressure in the back pressure cavity 66 is reduced, the water pressure in the water inlet cavity 53 pushes the water stop pad 62 to open the water stop hole 531, water inflow is realized, namely, the opening or closing of the back pressure hole 68 is realized, and the on-off of a water channel between the water inlet cavity 53 and the water discharge cavity 54 of the valve body 5 can be controlled;

the first rotating arm 63 is parallel to the end surface of the water stop cover 61 and is pivoted to one side of the water stop cover 61 through a first rotating shaft 631, a first pivot hole 611 is formed in the water stop cover 61, the first rotating shaft 631 rotatably penetrates through the first pivot hole 611, the first rotating shaft 631 divides the first rotating arm 63 into a long arm 632 and a short arm 633, and the end of the long arm 632 is a free end; the second rotating arm 64 is parallel to the end surface of the water stop cover 61 and is pivoted to the other side of the water stop cover 61 through a second rotating shaft 641 positioned at one end of the second rotating arm 64, a second pivot hole 612 is arranged on the water stop cover, the second rotating shaft 641 is rotatably arranged on the second pivot hole 612 in a penetrating way, the other end of the second rotating arm 64 strides over the outer side of the back pressure hole 68 and is connected with a short arm 633 of the first rotating arm 63 in a sliding way, the second rotating arm 64 and the first rotating arm 63 form a semi-closed ring with an opening and hooped on two sides of the water stop cover 61, and the second rotating arm 64 is provided with a back pressure pad 65 corresponding to the position of the back pressure hole 68; when the first rotating arm 63 is pushed to drive the second rotating arm 64 to rotate around the shaft, the back pressure pad 65 is driven to open or close the back pressure hole 68; the second rotating arm 64 and the first rotating arm 63 are cooperatively connected with a sliding groove 634 through a sliding column 642, the sliding column 642 slides in the sliding groove 634, so that the second rotating arm 64 and the first rotating arm 63 can move together, when the long arm 632 of the first rotating arm 63 is pushed upwards, the first rotating arm 63 rotates around a shaft, the short arm 633 of the first rotating arm 63 moves downwards, the sliding groove 634 arranged at the end of the short arm 633 drives the sliding column 642 of the second rotating arm 64 to slide downwards, the second rotating arm 64 rotates around the second rotating shaft, and then the second rotating arm 64 is close to the water stop cover 61, and the back pressure pad 65 closes the back pressure hole 68.

As shown in fig. 3 and 4, in this embodiment, the valve body 5 includes a water receiving tank 56, the water receiving tank 56 is disposed below the valve body 5, the water receiving tank 56 is provided with a valve body mounting hole 563, the valve body 5 is provided with a valve body mounting pin 57 that is matched with the valve body mounting hole 563, and the valve body 5 is mounted above the water receiving tank 56 through matching between the valve body mounting pin 57 and the valve body mounting hole 563; an annular sleeve joint part 564 is arranged below the water receiving tank 56, the water receiving tank 56 is rotatably sleeved on the top of the overflow pipe 4 through the annular sleeve joint part 564, the water receiving tank 56 is opened on the side wall of the annular sleeve joint part 564, the opening leads to the overflow port 1, when the water level in the toilet water tank reaches the maximum allowable water level due to the failure of the water inlet valve of the toilet water tank, water flow enters the overflow pipe 4 along the overflow port 1 and then is discharged along the water discharge valve 3 so as to prevent the overflow of the water in the toilet water tank due to the failure of the water inlet, the water receiving tank 56 covers the lower part of the backpressure valve 6, a small amount of backpressure water flows out along the backpressure hole 68 through the backpressure hole 68 in the open state of the backpressure hole 68 of the backpressure valve 6, the water receiving tank 56 receives the backpressure water flowing out from the backpressure hole 68, the opening at the bottom of the water receiving tank 56 conducts the backpressure water to the overflow port 1, the toilet water tank is discharged out of the toilet water tank along with the water discharge valve 3, and the water flow flowing out of the backpressure hole 68 is prevented from dropping in the water tank of the water inlet valve of the toilet water inlet valve, and the normal control mechanism 2 on the backpressure valve is influenced.

As shown in fig. 1, 4 and 6, in order to enable a water inlet valve mounted on an overflow pipe to be capable of performing height adjustment according to different toilet water tanks, the present disclosure provides a water inlet valve height adjusting device, which utilizes the upward extending height of the overflow pipe 4, and sets a height adjusting device on the overflow pipe, connects the water inlet valve to the height adjusting device, and further adjusts the height of the water inlet valve in the toilet water tank, specifically, the overflow pipe 4 includes a fixed pipe 41 and a movable sleeve 42, the movable sleeve 42 is a cylindrical pipe with a smooth outer surface, an inner diameter of an annular socket 564 disposed below the water receiving tank 56 is not smaller than an outer diameter of the movable sleeve 42, and the annular socket 564 is rotatably sleeved above the movable sleeve 42; the outer wall of the fixed pipe 41 is provided with positioning teeth 411 along the vertical array of the fixed pipe, a convex block 412 is arranged between every two adjacent positioning teeth 411, the positioning teeth 411 are arrayed from the bottom of the fixed pipe 41 to the top of the fixed pipe 41, the inner wall of the movable sleeve 42 is provided with clamping teeth 421 clamped with the positioning teeth 411, the clamping teeth 421 are provided with clamping grooves 422 clamped with the convex block 412, the movable sleeve 42 is rotatably sleeved on the fixed pipe 41, the movable sleeve 42 rotates to enable the clamping teeth 421 to be screwed into the positioning teeth 411, after the clamping teeth 421 are screwed into the positioning teeth 411, the convex block 412 is clamped with the clamping grooves 422, so that the movable sleeve 42 and the fixed pipe 41 are circumferentially fixed, the movable sleeve 42 is rotated reversely to make the positioning teeth 411 screwed out of the engaging teeth 421, at this time, the movable sleeve 42 can move up and down along the fixed tube 41, after moving to the height to be adjusted, the engaging teeth 421 are screwed into the positioning teeth 411 at the height, the engaging teeth 421 are engaged with the positioning teeth 411, the movable sleeve 42 is fixed at a certain height of the fixed tube 41, the height adjustment is completed, the valve body 5 is sleeved with the movable sleeve 42 through an annular sleeved part 564 arranged on a water receiving groove 56 of the valve body and moves up and down along with the movable sleeve 42, and then the height of the valve body 5 in the toilet water tank is adjusted through the engagement of the positioning teeth 411 and the engaging teeth 421.

As shown in fig. 3, 4, 7 (a) and 7 (b), the valve body 5 is provided with a limit portion 565, and the buoyancy control mechanism 2 further includes a water tank 21, a float 22, a float screw 23, and a water tank bolt 24;

the water tank 21 is provided with a through hole 211 in the vertical direction, the water tank 21 is movably sleeved on the overflow pipe 4 through the through hole 211, the water tank 21 can slide up and down along the overflow pipe 4 and rotate circumferentially, an opening is formed above the water tank 21, the float 22 falls in the water tank 21, a check valve 25 for only supplying water is arranged below the water tank 21, the check valve 25 is the prior art, and details are not described in this embodiment;

the limiting part 565 is provided with a float screw limiting hole 566, the float screw 23 passes through the float screw limiting hole 566 to limit the radial movement of the float screw 23, the lower part of the float screw 23 is provided with a screw thread section, the float 22 is provided with a float connecting hole 221 matched with the screw thread section, the float screw 23 is screwed with the float 22 through the float connecting hole 221, the float screw 23 is provided with a clamping groove, the clamping groove is clamped with the water stopping slider 233, the water stopping slider 233 is provided with a water stopping sliding groove 234 along the vertical direction, the water stopping cover 61 is provided with a water stopping sliding rail 613 along the vertical direction, the water stopping sliding groove 234 is clamped on the water stopping sliding rail 613 in a sliding manner, the water stopping slider 233 is connected with the long arm 632 end of the first rotating arm 63, the float 22 moves up and down in the water tank 21 to drive the float screw 23 to move up and down, and the float screw 23 drives the first rotating arm 63 and the second rotating arm 64 to hoop tightly or loosen on two sides of the water stopping cover 61, so as to control the back pressure pad 65 or open the back pressure hole 68;

a water tank bolt limiting hole 567 is formed in the limiting portion 565, the water tank bolt 24 penetrates through the water tank bolt limiting hole 567, the limiting portion 565 limits radial movement of the water tank bolt 24 through the water tank bolt limiting hole 567, a bolt thread section with a direction opposite to that of a screw thread section is arranged below the water tank bolt 24, a water tank link hole 212 matched with the bolt thread section on the water tank bolt 24 is formed in the water tank 21, the lower portion of the water tank bolt 24 is in threaded connection with the water tank 21 through the water tank link hole 212, a water tank bolt connection groove 568 is formed in the valve body 5, and the upper portion of the water tank bolt 24 penetrates through the water tank bolt connection groove 568 and is rotatably connected to the valve body 5;

the floating barrel screw 23 and the water tank bolt 24 are in meshed transmission, so that the rotating directions of the floating barrel screw 23 and the water tank bolt 24 are opposite, and the floating barrel screw 23 or the water tank bolt 24 is rotated due to the fact that the rotating directions of the screw thread section and the bolt thread section are opposite, so that the floating barrel 22 and the water tank 21 can move in the same direction at the same time.

As shown in fig. 3, 8 (a), 8 (b), 9 (a), and 9 (b), this section provides a water replenishing device, which is generally conducted to a drain valve through a pipe connection from a water replenishing channel on a water inlet valve, in this embodiment, the water replenishing channel of the water replenishing device is directly opened above an overflow pipe, and a water replenishing strip adjusting mechanism is directly arranged on the water replenishing channel, so that the structure is more compact, specifically, a water replenishing channel 58 communicated with a water draining cavity 54 is arranged below a valve body 5, the water replenishing channel 58 is directly arranged above an overflow port 1, the water replenishing channel 58 is provided with a water replenishing knob mounting hole 584 perpendicularly intersecting with the water replenishing channel 58, a water replenishing knob 581 is rotatably mounted in the water replenishing knob mounting hole 584 to separate a water inlet end and a water outlet end of the water replenishing channel 58, the water replenishing knob mounting hole 584 is provided with a sealing ring 590 at two sides of the water replenishing channel 58, the sealing ring 590 surrounds the side wall of the water replenishing knob 581 to prevent the water leakage at the joint of the water replenishing knob 581 and the water replenishing knob 584, one end of the water replenishing knob 581 extends out of the water replenishing channel 58 and is connected with a handle 582 controlling the rotation of the water replenishing knob 581, in this embodiment, the handle 582 extends to the outer surface of the water receiving tank 56 of the valve body 5, a shift lever 585 extends on the outer surface of the water receiving tank 56, the outer surface of the water receiving tank 56 is provided with a maximum water level limit block 586 and a minimum water level limit block 587, the water replenishing knob 581 is provided with an adjusting hole 583 in the water replenishing channel 58, the axis of the adjusting hole 583 and the axis of the water replenishing channel 58 are located on the same plane, the water replenishing knob 581 is rotated to change the dislocation angle of the adjusting hole 583 and the water replenishing channel 58, when the adjusting hole 583 and the water replenishing channel 58 are located on the same axis, at this time, the water replenishing proportion is maximum, the shift lever 585 abuts against the maximum water level limiting block 586, when the adjusting hole 583 is perpendicular to the water replenishing channel 58, the water replenishing proportion is minimum, the shift lever 585 abuts against the minimum water level limiting block 587, the handle 582 is provided with a scale line 588 at the outer surface of the water receiving tank 56, the outer surface of the water receiving tank 56 is provided with a pointer 589 pointing to the scale line 588, when the water replenishing amount is adjusted, the water replenishing knob 581 is shifted, the position of the scale line 588 pointed by the pointer 589 is observed, the proportion of opening of the water replenishing channel 58 can be obtained, one end of the water replenishing knob 581 departing from the handle 582 is provided with an elastic clamping tooth 580 clamped with the water replenishing knob mounting hole 584, the water replenishing knob 581 is inserted into the water replenishing knob mounting hole 584 from the outer surface of the water receiving tank 56, when the handle 582 abuts against the surface of the water receiving tank 56 of the valve body 5, the elastic clamping tooth 580 and the other end of the water replenishing knob mounting hole 584 can be axially fixed, and the water replenishing knob 581 in this case can be similarly adopted without being limited to the specific structure.

In a further embodiment shown in fig. 3, 9 and 10, the drainage cavity 54 of the valve body 1 is divided into an upper part and a lower part, a sealing plug 59 is installed at one end of the lower drainage cavity, the sealing plug 59 is U-shaped, the U-shaped opening of the sealing plug 59 is installed at one end of the lower drainage cavity, the lower drainage cavity 54 is separated from the water inlet cavity 53, the lower drainage cavity is provided with a water guide 595 extending to the top of the valve body 5, the upper drainage cavity and the water inlet cavity 53 are communicated with the water stop 531, the upper drainage cavity is provided with a siphon stop 594 communicating to the top of the valve body, the siphon stop 594 is provided above the water guide 595 with a siphon stop cavity 593, a siphon pad 591 is provided in the siphon stop cavity 593, the siphon stop 591 is provided in the siphon stop cavity 591, the siphon stop 594 is provided above the siphon stop 592, the siphon stop 592 is snapped in the outer wall of the valve body 5, when the siphon stop the siphon water flow from the inlet 598, and the siphon stop 598 when the siphon water inlet 598 is opened, the siphon stop 598, and the inlet 598 flows out of the toilet bowl 598, and the inlet 598 is blocked by the siphon stop the siphon pressure of the inlet 598, and the inlet 593, and the siphon stop 598, and the inlet 598, the siphon stop 593.

Specific example 2:

as shown in fig. 2, the overflow pipe 4 is not provided with the movable sleeve 42, the outer surface of the fixed pipe 41 is a smooth cylindrical surface, and the annular socket portion 564 and the through hole 211 on the water tank 21 are directly sleeved on the fixed pipe 41.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the design of the present invention, and all equivalent changes made in the design key point of the present invention fall within the protection scope of the present invention.

Claims (10)

1. A water inlet valve fixed on a water discharge valve is characterized in that: the water-saving valve comprises a valve body (5) and a buoyancy valve control mechanism (2), wherein a water inlet cavity (53) and a water drainage cavity (54) are arranged in the valve body (5), a water inlet (51) is formed in the water inlet cavity (53), a water outlet (52) is formed in the water drainage cavity (54), the buoyancy valve control mechanism (2) controls the on-off of a water path between the water inlet cavity (53) and the water drainage cavity (54), the valve body (5) is installed on an overflow pipe (4) of a drainage valve of a toilet water tank, the water inlet (51) is communicated with a household water pipe network through a water inlet pipe (8) which plays a connecting role, the water inlet pipe (8) is a water inlet hose, and the water outlet (52) is positioned outside the overflow pipe (4) and leads to the toilet water tank;

buoyancy valve control mechanism (2) are including buoyancy control mechanism (9), buoyancy control mechanism (9) are including water tank (21), flotation pontoon (22), water tank (21) cup joint on overflow pipe (4), flotation pontoon (22) fall in water tank (21), water tank (21) bottom is equipped with check valve (25) that only supply water, flotation pontoon (22) are in water channel break-make between up-and-down motion control intake antrum (53), drainage chamber (54) in water tank (21).

2. A fill valve for mounting on a drain valve as claimed in claim 1, wherein: one end of the water inlet pipe (8) is connected with the water inlet (51), one end of the water inlet pipe (8) is provided with a sleeve joint, and the water inlet pipe (8) is communicated with a household water pipe network through the sleeve joint; the water outlet (52) is communicated to the toilet water tank through a water outlet hose positioned outside the overflow pipe (4).

3. A fill valve for mounting on a drain valve as claimed in claim 1, wherein: the valve body (5) is rotatably arranged on the overflow pipe (4).

4. A fill valve for mounting on a drain valve as claimed in claim 1, wherein: the overflow pipe (4) comprises a fixed pipe (41) and a movable sleeve (42), the fixed pipe (41) is arranged on the base of the drainage valve, the movable sleeve (42) is sleeved on the fixed pipe (41), the valve body (5) is rotatably arranged on the movable sleeve (42), and the movable sleeve (42) moves up and down relative to the fixed pipe (41) to adjust the height of the valve body (5) in the toilet water tank.

5. The inlet valve fixed to the drain valve according to any one of claims 1, 2, 3 and 4, wherein: the water inlet cavity (53) is located in the center of the valve body (5), the drainage cavity (54) surrounds the outer side of the water inlet cavity (53), the water inlet cavity (53) is communicated with the drainage cavity (54) at the water stop opening (531), and the buoyancy valve control mechanism (2) controls the opening or closing of the water stop opening (531).

6. The inlet valve fixed to the drain valve as claimed in claim 5, wherein: the water inlet cavity (53) and the water discharge cavity (54) extend in the valve body (5) along the horizontal direction, the water inlet (51) is positioned at one end of the water inlet cavity (53) extending horizontally, the water stopping port (531) is positioned at the other end of the water inlet cavity (53) extending horizontally, and a mounting port is arranged outside the water stopping port (531);

the buoyancy valve control mechanism (2) comprises a back pressure valve (6), the back pressure valve (6) is installed in the installation port (55) in a sealing mode, and the buoyancy control mechanism (9) controls the opening or closing of the water stopping port through the back pressure valve (6).

7. A water inlet valve for mounting on a water outlet valve according to claim 6 wherein: the back pressure valve (6) comprises a water stop cover (61), a water stop pad (62), a first rotating arm (63), a second rotating arm (64) and a back pressure pad (65), the water stop cover (61) is clamped in the mounting opening (55), the water stop pad (62) is arranged at the water stop opening (531), the water stop pad (62) and the water stop cover (61) are buckled to form a back pressure cavity (66), the water stop pad (62) is provided with a water through hole (67) for communicating the water inlet cavity (53) with the back pressure cavity (66), and the water stop cover (61) is provided with a back pressure hole (68) for communicating the back pressure cavity (66) with the outside; the first rotating arm (63) is parallel to the end face of the water stop cover (61) and is pivoted to one side of the water stop cover (61) through a first rotating shaft (631), the first rotating shaft (631) divides the first rotating arm (63) into a long arm (632) and a short arm (633), the end part of the long arm (632) is a free end, the second rotating arm (64) is parallel to the end face of the water stop cover (61) and is pivoted to the other side of the water stop cover (61) through a second rotating shaft (641) positioned at one end of the second rotating arm (64), the other end of the second rotating arm (64) crosses a back pressure hole to be in sliding connection with the short arm of the first rotating arm (63) and hooped on two sides of the water stop cover (61), and the second rotating arm (64) is provided with a back pressure pad (65) corresponding to the position of the back pressure hole;

the buoyancy control mechanism (9) further comprises a buoy screw rod (23) and a water tank bolt (24); the upper portion of the buoy screw rod (23) is movably fixed on the valve body (5) and is abutted to the end of the long arm (632) of the first rotating arm (63), a screw thread section extends from the lower portion of the buoy screw rod (23) and is used for being in threaded connection with a buoy (22), the buoy (22) moves up and down in the water tank (21) to drive the buoy screw rod (23) to move up and down on the valve body (5), so that the first rotating arm (63) and the second rotating arm (64) are driven to rotate on the water stop cover (61), and then the back pressure pad (65) is driven to block or open the back pressure hole (68); the upper part of the water tank bolt (24) is rotationally fixed on the valve body (5), and a bolt thread section with the opposite rotation direction to the screw thread section is arranged below the water tank bolt (24) and is used for screwing the water tank (21); meshing transmission between flotation pontoon screw rod (23) upper portion and water tank bolt (24) upper portion rotates flotation pontoon screw rod (23) or water tank bolt (24), and then drives water tank (21) of connecting on water tank bolt (24), flotation pontoon (22) of connecting on flotation pontoon screw rod (23) and slides from top to bottom along overflow pipe (4).

8. The inlet valve fixed to the drain valve as claimed in claim 7, wherein: valve body (5) including being located its below water receiving tank (56), water receiving tank (56) below is equipped with annular portion of cup jointing (564), valve body (5) can rotate through annular portion of cup jointing (564) and cup joint at overflow pipe (4) top, water receiving tank (56) lateral wall opening, the opening leads to overflow mouth (1), water receiving tank (56) will the rivers of back pressure hole exhaust of back pressure valve (6) are led into overflow pipe (4).

9. The inlet valve fixed to the drain valve as claimed in claim 6, wherein: the drainage cavity (54) on the valve body (5) is divided into an upper part and a lower part, the water outlet (52) is arranged in the water discharging cavity at the lower part, the water discharging cavity at the lower part is provided with a water guide opening (595) extending to the top of the valve body (5), the upper drainage cavity is provided with an anti-siphon mouth (594) communicated with the top of the valve body, an anti-siphon cavity (593) is arranged above the anti-siphon mouth (594) and the water guide opening (595), an anti-siphon pad (591) is arranged in the anti-siphon cavity (593), the anti-siphon pad (591) is placed on the anti-siphon opening (594), an anti-siphon cover (592) is buckled above the anti-siphon cavity (593), the anti-siphon cap (592) is arranged on the outer wall of the valve body (5), the anti-siphon cap (592) is provided with an air inlet (598) above the anti-siphon pad (591), when water flows out of the anti-siphon port (594), water pressure is generated in the anti-siphon cavity (593), the upper anti-siphon pad (591) is lifted off the anti-siphon port (594) and blocks the air inlet (598), the anti-siphon cavity (593) conducts the anti-siphon mouth (594) with the water guide opening (595), when water stops flowing out of the anti-siphon port (594), water pressure in the anti-siphon cavity (593) disappears, the anti-siphon pad (591) falls to block the anti-siphon port (594) and open the air inlet (598), and the water guide port (595) is communicated with the outside through the air inlet (598).

10. The inlet valve fixed to the drain valve as claimed in claim 5, wherein: a water replenishing channel (58) communicated with the drainage cavity (54) is arranged below the valve body (5), and the water replenishing channel (58) is directly positioned above an overflow port (1) of the overflow pipe (4); moisturizing passageway (58) in be equipped with moisturizing knob (581), be equipped with regulation hole (583) on moisturizing knob (581), moisturizing knob (581) one end is connected with rotatory handle (582) of control moisturizing knob (581) outside extending the moisturizing passageway, rotatory moisturizing knob (581) change the dislocation angle of regulation hole (583) and moisturizing passageway (58) to change the moisturizing proportion of moisturizing passageway (58).

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