CN201534998U

CN201534998U - Double-gear flushing control valve

Info

Publication number: CN201534998U
Application number: CN200920306111XU
Authority: CN
Inventors: 王达刚; 郭军学
Original assignee: American Standard (jiangmen) Plumbing Equipment Co Ltd
Current assignee: American Standard (jiangmen) Plumbing Equipment Co Ltd
Priority date: 2009-07-13
Filing date: 2009-07-13
Publication date: 2010-07-28
Anticipated expiration: 2019-07-13

Abstract

The utility model discloses a double-gear flushing control valve which comprises a casing, wherein the casing comprises a top cavity, a water inlet cavity and a water outlet cavity. A control valve body is mounted in the casing, the control valve body comprises a main valve and a control valve, wherein the main valve is sleeved outside the control valve, the upper portion of the main valve is sleeved in the top cavity, the upper portion of the main valve is provided with a small hole which is communicated with the top cavity and the water inlet cavity, the lower portion of the main valve is mounted between the water inlet cavity and the water outlet cavity, the control valve comprises a control valve seat and an inner cylinder which are sleeved from outside to inside, the top portion of the inner cylinder is fixedly connected with a sliding valve seat, the middle portion of the control valve seat is provided with an inner lug boss, the sliding valve seat and the control valve seat are contacted and sealed in a sliding way, a spring is arranged between the sliding valve seat and the inner lug boss on the control valve seat, the volume between the control valve seat and the inner cylinder is smaller than the volume in the inner cylinder, the bottom portion in the control valve seat is provided with a top rod, the upper portion of the top rod is provided with a sealing device, a spring is arranged between the top portion of the top rod and the bottom of the sliding valve seat, and a draw rod downward moves and the top rod upwards moves so as to achieve the flushing in big flow and small flow.

Description

A kind of dual-flush control valve

Technical field

The utility model relates to a kind of valve body, particularly a kind of dual-flush control valve.

Background technology

At present at the washing control valve of the washroom of public places such as public lavatory, school, generally have only single single channel control can only realize big flow flushing, no matter be that flushing urine or stool all are same discharge, yet the flush efficiency of washroom depends on the size of water flow velocity, whenever such control valve washes all is same flow, can not regulate the bath flow according to the difference of flushing thing, thereby cause the waste of water resource.

Summary of the invention

In order to overcome the deficiencies in the prior art, the utility model provides a kind of reliable, dual-flush control valve that water-saving result is good rational in infrastructure.

The technical scheme that its technical problem that solves the utility model adopts is:

A kind of dual-flush control valve, comprise housing, be provided with the chamber, top in the housing, intake antrum and water chamber, enclosure interior are equipped with application valve body and joystick, and described application valve body comprises main valve and control valve, main valve housing is contained in outside the control valve, main valve top is sleeved in the chamber, top, and the top of main valve has the aperture that is communicated with chamber, top and intake antrum, and the main valve bottom is installed between intake antrum and the water chamber; Described control valve comprises sheathed from outside to inside control valve seat and inner casing, described inner casing top is fixedly connected with the slip valve seat, the control valve seat middle part is provided with inner convex platform, described slip valve seat and control valve seat sliding-contact sealing, be provided with spring between the inner convex platform on slip valve seat and the control valve seat, the volume between described control valve seat and the inner casing is less than the internal capacity of inner casing; Described inner casing below is fixedly connected with pull bar, is provided with sealing device between described control valve seat and the pull bar, and described joystick one end inserts in the through hole of pull bar; Cylinder interior is provided with through hole and is with push rod in described, and described push rod passes through hole and stretches into pull bar inside downwards, and described push rod is provided with the sealing device of salable inner casing interior bone, is connected with spring between described push rod top and the slip valve seat bottom.

The beneficial effects of the utility model are: adopt the folk art term control valve, by on lift and press down joystick, the time length of control main valve open thereby the displacement of selecting different gears varies in size, to realize flushing to two kinds of flows of closet size, difference according to the flushing thing is selected corresponding discharging quantity of water, reaches the purpose of conserve water resource.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is an overall structure schematic diagram of the present utility model;

Fig. 2 is the structural representation of the utility model internal control valve body;

Fig. 3 is an explosive view of the present utility model.

With reference to Fig. 1, Fig. 2, Fig. 3, a kind of dual-flush control valve, comprise housing 1, be provided with chamber 11, top in the housing 1, intake antrum 12 and water chamber 13, application valve body and joystick 226 are equipped with in housing 1 inside, application valve body comprises main valve 21 and control valve 22, and main valve 21 is sleeved on outside the control valve 22, and main valve 21 tops are sleeved in the chamber 11, top, the top of main valve 21 has the aperture 121 that is communicated with chamber 11, top and intake antrum 12, and main valve 21 bottoms are installed between intake antrum 12 and the water chamber 13; Control valve comprises sheathed from outside to inside control valve seat 221 and inner casing 223, inner casing 223 tops are fixedly connected with slip valve seat 222, control valve seat 221 middle parts are provided with inner convex platform, slip valve seat 222 and control valve seat 221 sliding-contacts sealing, be provided with spring 31 between the inner convex platform on slip valve seat 222 and the control valve seat 221, the volume between control valve seat 221 and the inner casing 223 is less than the internal capacity of inner casing 223; Inner casing 223 belows are fixedly connected with pull bar 225, are provided with sealing device 61 between control valve seat and the pull bar, and joystick 226 1 ends insert in the through hole of pull bar 225; Inner casing 223 inside are provided with through hole and are with push rod 224, push rod 224 passes through hole and stretches into pull bar 225 inside downwards, push rod 224 is provided with the sealing device 63 of salable inner casing interior bone, is connected with spring 32 between push rod 224 tops and slip valve seat 222 bottoms.

Sealing device 61 narrows the sealing mat that clamps between the upper surface of portion and pull bar 225 for being arranged on inner casing 223 lower ends, be used to seal low discharge flushing chamber 4, if it is enough good that the contact surface sealing between control valve seat 221 and the pull bar 225 is done, sealing mat can be installed.Pull bar 225 is sleeved on the inner casing 223 bottoms outsides, and as another embodiment of the present utility model: pull bar 225 also can be sleeved on inner casing 223 lower inside.When joystick 226 drive pull bars 225 moved downward, pull bar 225 drove inner casing simultaneously and moves downward, thereby opened low discharge flushing chamber 4.Joint ring 62 is equipped with chamber, top 11 contact portions in main valve 21 tops, is used for separating chamber 11, top and intake antrum 12.Be installed with joint ring 71 between main valve 21 inside and the application valve body 22, stop the water and water chamber 13 channelling in chamber 11, top.Be installed with joint ring 72 between slip valve seat 222 and the control valve seat 221.Sealing device (63) on the push rod (224) is a sealing mat, is used to seal the through hole of inner casing bottom, thereby seals big flow flushing chamber 5.Control valve seat 221 arranged outside at an upper portion thereof has the inlet opening 81 that is communicated with chamber 11, top, makes low discharge flushing chamber 4 be communicated with chamber 11, top.Inner casing 223 upper outside are provided with inlet opening 82, make big flow flushing chamber 5 be communicated with chamber 11, top.

Low discharge flushing: when on when lifting joystick 226, joystick 226 rotates counterclockwise around fulcrum, thereby driving pull bar 225 moves downward, because fixedly connected with pull bar 225 in inner casing 223 belows, inner casing 223 upper fixed connect slip valve seat 222, so further drive inner casing 223 and slip valve seat 222 moves downward, control valve seat 221 bottoms and pull bar 225 tops are left, make low discharge flushing chamber 4 open, water in the low discharge flushing chamber 4 flows out from the contact portion at control valve seat 221 bottoms and pull bar 225 tops, enter water chamber 13, the hydraulic pressure in low discharge flushing chamber 4 reduces; The water that pushes up chamber 11 this moment can enter low discharge flushing chamber 4 by aperture 81 and replenish the water that flows away, the hydraulic pressure in chamber 11, top reduces, the water of intake antrum 12 enters the chamber, top by aperture 121 under the effect of hydraulic pressure, but because aperture 121 is less, being not enough to replenish upward, low discharge washes the water that chamber 4 flows away, causing pushing up chamber 11 pressure reduces, produced pressure differential between chamber 11, top and the intake antrum 12, the hydraulic pressure of intake antrum 12 can promote main valve 21 and move upward, open main valve 21 bottoms, the water of intake antrum 12 enters water chamber 13, washes by water.Behind release on control handle 226, drive inner casings 223 and pull bar 225 resets at the effect lower slider valve seat 222 of spring 31 reset forces, control valve seat 221 bottoms contact with pull bar 225, and low discharge washes chamber 4 and closes.This moment, the water of intake antrum 12 entered chamber 11, top and low discharge flushing chamber 4 by aperture 121, aperture 81.Because aperture 121 is less, low discharge flushing chamber 4, chamber 11, top a period of time of will delaying time just can be full of.After low discharge flushing chamber 4, chamber 11, top are full of, the water of intake antrum 12 continues to enter chamber 11, top by aperture 121, because main valve 21 is still opened, intake antrum 12 circulates mutually with water chamber 13, push up the pressure in chamber 11 greater than intake antrum 12 this moment, the water pressure pushing main valve 21 in chamber 11, top moves downward, and main valve 21 is closed.Because low discharge flushing chamber 4 is less, the time that refills water is shorter, thus main valve 21 to be in time of open mode also shorter, thereby realize the low discharge flushing.

Big flow flushing: instantly during pressure-controlled handle 226, joystick 226 clockwise rotates around fulcrum, push rod 224 jack-up, the sealing device on push rod 224 tops is opened, make big flow flushing chamber 5 open, water in the big flow flushing chamber 5 flows out, and enters water chamber 13, and the hydraulic pressure in big flow flushing chamber 5 reduces; The water that pushes up chamber 11 this moment can enter big flow flushing chamber 5 by aperture 82 and replenish the water that flows away, the hydraulic pressure in chamber 11, top reduces, the water of intake antrum 12 enters the chamber, top by aperture 121 under the effect of hydraulic pressure, but because aperture 121 is less, be not enough to replenish the water that upward big flow flushing chamber 5 flows away, causing pushing up chamber 11 pressure reduces, produced pressure differential between chamber 11, top and the intake antrum 12, the hydraulic pressure of intake antrum 12 can promote main valve 21 and move upward, open main valve 21 bottoms, the water of intake antrum 12 enters water chamber 13, washes by water.Behind release on control handle 226, under the effect of the reset force of spring 32, promote push rod 224 and reset, the sealing device on the push rod 224 seals big flow flushing chamber 5, and big flow flushing chamber 5 is closed.This moment, the water of intake antrum 12 entered chamber, top 11 and big flow flushing chamber 5 by aperture 121, aperture 82.Because aperture 121 is less, big flow flushing chamber 5, chamber 11, top a period of time of will delaying time just can be full of.After big flow flushing chamber 5, chamber 11, top are full of, the water of intake antrum 12 continues to enter chamber 11, top by aperture 121, because main valve 21 is still opened, intake antrum 12 circulates mutually with water chamber 13, push up the pressure in chamber 11 greater than intake antrum 12 this moment, the water pressure pushing main valve 21 in chamber 11, top moves downward, and main valve 21 is closed.Because big flow flushing chamber 5 is bigger, the time that refills water is longer, thus main valve 21 to be in time of open mode also longer, thereby realize big flow flushing.

Claims

1. dual-flush control valve, comprise housing (1), be provided with chamber (11), top in the housing (1), intake antrum (12) and water chamber (13), application valve body and joystick (226) are equipped with in housing (1) inside, it is characterized in that described application valve body comprises main valve (21) and control valve (22), main valve (21) is sleeved on outside the control valve (22), main valve (21) top is sleeved in the chamber, top (11), the top of main valve (21) has the aperture (121) that is communicated with chamber (11), top and intake antrum (12), and main valve (21) bottom is installed between intake antrum (12) and the water chamber (13); Described control valve comprises sheathed from outside to inside control valve seat (221) and inner casing (223), described inner casing (223) top is fixedly connected with slip valve seat (222), control valve seat (221) middle part is provided with inner convex platform, described slip valve seat (222) and control valve seat (221) sliding-contact sealing, be provided with spring (31) between the inner convex platform on slip valve seat (222) and the control valve seat (221), the volume between described control valve seat (221) and the inner casing (223) is less than the internal capacity of inner casing (223); Described inner casing (223) below is fixedly connected with pull bar (225), is provided with sealing device (61) between described control valve seat and the pull bar, and described joystick (226) one ends insert in the through hole of pull bar (225); Described inner casing (223) inside is provided with through hole and is with push rod (224), described push rod (224) passes through hole and stretches into pull bar (225) inside downwards, described push rod (224) is provided with the sealing device (63) of salable inner casing interior bone, is connected with spring (32) between described push rod (224) top and slip valve seat (222) bottom.

2. dual-flush control valve according to claim 1 is characterized in that described sealing device (61) narrows the sealing mat that clamps between the upper surface of portion and pull bar (225) for being arranged on inner casing (223) lower end.

3. dual-flush control valve according to claim 2 is characterized in that described pull bar (225) is sleeved on the outside, inner casing (223) bottom.

4. dual-flush control valve according to claim 1 is characterized in that described main valve (21) top and chamber (11), top contact portion are equipped with joint ring (62), are installed with joint ring (71) between main valve (21) inside and the application valve body (22).

5. dual-flush control valve according to claim 1, it is characterized in that described slip valve seat (222) and control valve seat (221) between be installed with joint ring (72).

6. a kind of dual-flush control valve according to claim 1 is characterized in that the sealing device (63) on the described push rod (224) is a sealing mat.

7. dual-flush control valve according to claim 1 or 5 is characterized in that described control valve seat (221) inlet opening (81) that arranged outside has and chamber, top (11) is communicated with at an upper portion thereof.

8. according to claim 1 or 2 or 3 described dual-flush control valves, it is characterized in that described inner casing (223) upper outside is provided with inlet opening (82).