CN2309473Y

CN2309473Y - Float-type differential water tank self-controlling valve

Info

Publication number: CN2309473Y
Application number: CN 96248169
Authority: CN
Inventors: 林鲁闽; 于兆年
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-10-29
Filing date: 1996-10-29
Publication date: 1999-03-03
Anticipated expiration: 2006-10-29

Abstract

The utility model belongs to the technical field of self-controlled valves of water tanks. The utility model has the technical scheme that the utility model is composed of a float bowl which is composed of an upper float bowl 12 and a lower float bowl 9, a main valve body and a valve core driving part which is composed of supporting rods 1, levers 10 and connecting rods 11. The utility model adopts double valve cores to control water along with water stream and has the advantages of good sealing performance, high controlled water pressure, large and stable flow quantity, compact structure, etc. The utility model is easy to open and can be used for flushing tanks of toilets.

Description

The differential water tank internally piloted valve of floating-tube type

The utility model belongs to water tank internally piloted valve technical field, is a kind of water inlet internally piloted valve that is mainly used in toilet flush control water inlet.

At present, generally the floating ball rod formula water tank internally piloted valve of Shi Yonging is to adopt ball float upwards, it is downward to be subjected to the effect of lever energetically to close core, owing to be that flow path direction is closed against the current, though easily open, but spool is stressed big, the water shutoff principle is unreasonable, water shutoff ability, and the internally piloted valve that present Parallel to the flow direction is closed, though the water shutoff ability is strong, but be difficult for to open, and valve is subjected to the restriction of cracking pressure size, makes valve water outlet design area limited size, and the unlatching size during water outlet work always is inversely proportional to the hydraulic pressure size of being controlled, and the flow size of valve is limited in the small range with the hydraulic pressure size of being controlled.

The purpose of this utility model provides the differential water tank internally piloted valve of a kind of floating-tube type, make its structure compact more, can eliminate the said apparatus deficiency, it is strong to obtain a kind of water shutoff ability, control hydraulic pressure height, and the hydraulic pressure that utilization is controlled is realized opening certainly, closing certainly the water outlet spool by the guiding of floating drum, make the water outlet size design and when work the valve core opening size be not subjected to the restriction of hydraulic pressure size in the water pipe, the flow that flows into water tank does not change with the rising of water tank middle water level, can accomplish to open in water outlet wink, and wink closes.

The technical solution of the utility model is: the floating drum part that it is made up of last floating drum 12 and lower pontoon 9, its floating drum part is enclosed within down valve body 7 places by endoporus S, can move up and down for guiding by following valve body 7, design has bearing rib K on lower pontoon 9, there is bearing hole at C place and D place at bearing rib, in the main valve body part, there is following valve body 7 to link to each other with intake pipe 8 and valve body 14, piston 4 is installed in the upper valve body 14, piston 4 two ends are installed big valve core 5 and small valve core 3 respectively, small valve core 3 can move up and down in piston 4 holes, the small valve core 3 upper ends sliding plug 2 that is fixedly connected simultaneously, sliding plug 2 connect perforate E on upper valve body 14 with lever 10 by bearing pin B; By supporting rod 1, the spool drive part that lever 10 and connecting rod 11 are formed, supporting rod 1 links to each other with valve body 14 by R place bearing pin, and supporting rod 1 can rotate around R place bearing pin.Connecting rod 11 is connected with bearing rib K on the lower pontoon 9 by C place or D place bearing pin, and can rotate around it.Lever 10 by A place, B place and G place bearing pin respectively with supporting rod 1, sliding plug 2 links to each other with connecting rod 11.Lever 10 can rotate around the A bearing pin.

The utility model is rational in infrastructure, easy for installation, owing to partly adopt the cracking pressure of small valve core control valve at main valve body, the double spool controlling method of the water flow size of big valve core control valve makes it to have control hydraulic pressure height, and flow is stablized greatly, valve is easily opened, advantages such as full spool adopts stream sealing downstream simultaneously, and sealability is strong, and the water shutoff principle is reasonable.

Below in conjunction with accompanying drawing the utility model is elaborated:

Accompanying drawing 1 is a structural representation of the present utility model.

In accompanying drawing 1 the utility model by on floating drum 12 and lower pontoon 9 form the floating drum part, by supporting rod 1, the spool drive part that lever 10 and connecting rod 11 are formed, and by sliding plug 2, small valve core 3, seal ring 13, piston 4, big valve core 5, Sealing 6, following valve body 7, the main valve body that intake pipe 8 and upper valve body 14 are formed partly constitutes.

The utility model is that the following valve body 7 with valve is the targeting part that floating drum partly moves up and down, the floating drum part is come driving lever 10 by the connecting rod 11 that is installed in lower pontoon 9 bearing rib C places, making lever 10 is that rotating shaft is rotated with the A place of supporting rod 1, lever 10 drives sliding plug 2 by bearing pin B place and slides up and down, sliding plug 2 is fixedlyed connected with the sealing small valve core 3 that is installed in piston 4 endoporus, piston 4 is installed in the upper valve body 14, and the other end of piston 4 is fixedlyed connected with big valve core 5, seal ring 13 and Sealing 6 are installed respectively on big valve core 5 and small valve core 3, and following valve body 7 and upper valve body 14 and intake pipe 8 fuse by screw thread.Working procedure of the present utility model is: water enters in upper valve body 14 parts by big valve core 5 outsides from intake pipe 8 and following valve body 7, water flows into water tank from the endoporus S of E mouth and lower pontoon 9, floating drum part with the following valve body of the rising of water tank middle water level 7 for to move up, drivening rod 11 promotes lever 10 and rotates around bearing pin A place, thereby lever 10 is moved upward by the sliding plug 2 of bearing pin B place pulling, and control small valve core 3 and big valve core 5 automatic Parallel to the flow direction are closed; When the water tank middle water level reduces, the floating drum part is under action of gravity, move downward, lever 10 drives sliding plug 2 and small valve core 3 moves downward, small valve core 3 is opened downwards, this moment, the epicoele of piston 4 poured water by the center hole of big valve core 5 and the small valve core of opening 3, it is identical to make it the hydraulic pressure that the last Seal cage hydraulic pressure of piston 4 is increased in the intake pipe, because piston 4 and big valve 5 fixedly all-in-one-piece two ends hydraulic pressure equate, and the useful area of hydraulic action is different, so form downward differential force, make piston 4 be moved downward to confined planes F place together with big valve core 5, big valve core 5 is opened under hydraulic action automatically, water in the intake pipe 8 and water outlet E connect fully, make water enter in the water tank automatically again, water level constantly raises in the water tank, the floating drum part rises again thereupon, driving the sliding plug 2 of spool drive part driving moves upward, under the common upwards effect of hydraulic pressure and sliding plug 2 pulling force, make small valve core 3 and big valve core 5 successively downstream stream close, reach the purpose of sealing, the utility model is different with above-below direction with mounting point, D place at the C place by adjusting connecting rod 11, can reach the difference of adjusting the water tank middle water level.

Claims

1, the differential water tank internally piloted valve of floating-tube type belongs to water tank internally piloted valve technical field, it has floating drum part that last floating drum (12) and lower pontoon (9) form and by supporting rod (1), spool drive part and main valve body that lever (10) and connecting rod (11) are formed partly constitute, and it is characterized in that: floating drum partly is enclosed within down valve body (7) by endoporus (S) and locates.

2, by the differential water tank internally piloted valve of the described floating-tube type of claim 1, it is characterized in that: bearing rib (K) is arranged on lower pontoon (9), locate and (D) located bearing hole at bearing rib (C).

3, by the differential water tank internally piloted valve of the described floating-tube type of claim 1, it is characterized in that: piston (4) is installed in valve body (14), piston (4) two ends are installed big valve core (5) and small valve core (3) respectively, be fixedly connected on small valve core (3) and slide plug (2), sliding plug (2) links to each other with lever (10).

4, by the differential water tank internally piloted valve of the described floating-tube type of claim 1, it is characterized in that: on valve body (14), have hole (E).

5, by the differential water tank internally piloted valve of the described floating-tube type of claim 1, it is characterized in that: supporting rod (1) is located to link to each other with valve body (14) by bearing pin at (R).

6, by the differential water tank internally piloted valve of the described floating-tube type of claim 1, it is characterized in that: connecting rod (11) can be located or (D) locates to link to each other with lower pontoon at the bearing rib (C) of lower pontoon (9) by bearing pin.

7, by the differential water tank internally piloted valve of the described floating-tube type of claim 1, it is characterized in that: lever (10) is by bearing pin and supporting rod (1), and sliding plug (2) floats with connecting rod (11) and is connected.