CN103742673A

CN103742673A - Valve

Info

Publication number: CN103742673A
Application number: CN201410029992.0A
Authority: CN
Inventors: 朱景峰; 徐建明
Original assignee: Hangzhou Kambayashi Electronics Co Ltd
Current assignee: Hangzhou Kambayashi Electronics Co Ltd
Priority date: 2014-01-22
Filing date: 2014-01-22
Publication date: 2014-04-23
Anticipated expiration: 2034-01-22
Also published as: CN103742673B

Abstract

The invention relates to a valve applicable to washing and capable preventing closing difficulty and poor closing. The valve comprises a valve body (1). A water inlet (101), a water supply chamber (102), a water outlet A (103), a water outlet chamber (104), a valve seat A (107), an A cavity (108), a valve seat B (110) and a B cavity (111), wherein the water inlet is communicated with the water supply chamber, the water outlet is communicated with the water outlet chamber, the valve seat A is located in the water supply chamber, the valve seat B is located in the B cavity, the A cavity is communicated with the B cavity through a through hole A (109), a valve flap (2) is matched on the valve seat A, a bypass hole (21) is formed in the valve flap, backpressure face of the valve flap is located in the A cavity, a valve seat B opening and closing component is matched on the valve seat B, a water outlet B (105) communicated with the air is formed in the valve body, a through hole B (106) is formed in the valve body, one end of the through hole B is communicated with the B cavity, and the other end of the through hole B is communicated with the water outlet B. The valve is suitable for being used as a washing valve.

Description

Valve

Technical field

The present invention relates to sanitary bath equipment product scope, be especially applicable to relate to a kind of valve of spray irrigation.

Background technique

Flushing device for toilet is requisite sanitary tool during people live.In flushing device for toilet, be all provided with toilet stool flushing valve, along with the progress of technology, toilet stool flushing valve is also in continuous development, by former push button, pressure bar type, foot-operatedly develop into present induction type.In the specification of China CN2018832506U, a kind of flashing valve with electromagnetic pressure relief valve is disclosed, in this technological scheme, utilize the magnetic switch of induction type to control the pressure in flashing valve, thereby reach the on-off action of controlling flashing valve, but this flashing valve only carrys out the switching of control valve by magnetic switch, when meeting power failure or fault, this flashing valve just cannot normally use, for user has brought great inconvenience.

In the specification of China CN103322215A, a kind of control valve is disclosed, this control valve has intake pipe, valve pocket, outlet pipe, the first cavity and the second cavity, intake pipe is communicated with outlet pipe by valve pocket, the first cavity is communicated with intake pipe, the second cavity is communicated with outlet pipe, between the first cavity and the second cavity, be provided with the first hole stifled, be used for conducting or separate the first cavity and the second cavity, due to the first cavity and intake pipe connection, the pressure that has simultaneously also guaranteed the first cavity that the first hole is blocked and intake pipe is equal, pressure of supply water in the first cavity exceeds default pressure, the first hole is stifled can move backward under the Water Pressure of the first cavity, thereby current are flowed out after the second cavity from outlet pipe, carry out releasing pressure automatically.Pressure release passage and outlet pipe that this control valve is controlled main valve keying lead to, and when pressure release passage is opened, main valve is opened, otherwise main valve is closed.This control valve essence is leading type valve.Leading type valve utilizes hydrodynamic pressure, by the pilot valve (also claiming pilot valve, secondary valve, Auxiliary valves) of relative small flow, is opened or is closed to guide the main valve of relatively large flow open or close, and avoids using directly opening and closing energetically main valve.The pressure release passage end leading to pilot valve in existing leading type flushing valve is communicated with water outlet conventionally, for being suitable for rinsing, the water outlet of valve is connected to nozzle, nozzle throttling action makes the very large pressure of generation in valve body, also make the interior pilot valve connected current by pass of valve body and accommodating pilot valve open and close the very large pressure of the interior generation of chamber of member, especially with regard to manual pilot valve, large pressure in this chamber can cause manual pilot valve to be difficult to close, even cannot close or close bad, thereby make flushing valve occur that main valve is closed, badly even cannot close.

Summary of the invention

The present invention will solve the existing leading type hand control valve that is applicable to rinse and be difficult to close or close bad problem, a kind of valve that belongs to leading type valve of the present invention is provided for this reason, and this valve can not cause valve to be closed badly maybe cannot closing because water outlet is provided with nozzle.

For addressing the above problem, the technical solution used in the present invention is to have valve body, this valve body is provided with water intake, water supply chamber, water outlet A, water-supplying chamber, valve seat A, A chamber, valve seat B and B chamber, water intake is communicated with water supply chamber, water outlet is communicated with water-supplying chamber, valve seat A is positioned at water supply chamber, valve seat B is positioned at B chamber, between A chamber and B chamber, lead to and have through hole A, on valve seat A, be combined with flap, on flap, offer other hole, this flap back pressure face is positioned at A chamber, on valve seat B, be combined with valve seat B and open and close member, its special way is that described valve body is provided with the water outlet B connecting with atmosphere, in valve body, offer through hole B, through hole B one end is communicated with described B chamber, the through hole B the other end is communicated with described water outlet B.

Described valve seat B opens and closes member and can be comprised of cap, pull bar, seal ring and Returnning spring A, cap is positioned at described B chamber corresponding with described valve seat B, pull bar front portion is positioned at B chamber and pull bar front end is connected in cap, seal ring is embedded in B cavity rear end portion chamber wall and cover is encapsulated in described pull bar, and Returnning spring A is arranged between back end of tie rod and valve body one gear platform.

Described valve seat B opens and closes member also can be by cap, piston, spring, pull bar B, seal ring and Returnning spring A form, cap is positioned at described B chamber corresponding with described valve seat B, piston is positioned at B chamber and piston nose is connected in cap, pull bar B front portion is positioned at B chamber, seal ring is embedded in B cavity rear end portion chamber wall and cover is encapsulated in pull bar B, Returnning spring A is arranged between pull bar B rear end and valve body one gear platform, pull bar B front portion offers blind hole, this blind hole hole wall front portion has draw-in groove, piston rear end has claw, this claw is positioned at the described draw-in groove of pull bar B, making pull bar B be pulled rearward piston while moving is pulled back by pull bar B, described spring is in the described blind hole of pull bar B and between piston rear end and blind hole bottom surface.

Can between described piston rear end and spring, be provided with cushion block.

A kind of optional mode of the present invention is in described valve body, to be provided with valve seat D and valve seat E, valve seat D is positioned at described water-supplying chamber top, valve seat E is positioned at described water-supplying chamber bottom, valve seat D port is communicated with valve seat A port, region division at water-supplying chamber and valve seat D port has anti-backflow spool, and the above and below of anti-backflow spool interlayer is respectively provided with sealing gasket A and sealing gasket B, and sealing gasket A is corresponding with valve seat D, sealing gasket B is corresponding with valve seat E, is provided with Returnning spring B below anti-backflow spool.Which is can prevent that water outlet direction pipeline resident water from refluxing when water inlet direction pipeline occurs negative pressure because of cutout.

The present invention is above-mentioned belongs to leading type manually-operated gate, and its pilot valve is manual pilot valve.

The present invention runs through and has C chamber in described through hole A middle part in valve body, in valve body, be provided with valve seat C, valve seat C is positioned at C chamber, valve seat C port is communicated with described through hole B, and valve body is provided with valve seat C electromagnetism and opens and closes member, and this electromagnetism opens and closes member and is provided with coil, in guide pin bushing in coil, be provided with secured core and movable core, between secured core and movable core, be provided with spring, movable core front end is connected with cap B, and cap B is corresponding with valve seat C.Which also has solenoid pilot valve member except having manual pilot valve member.

The present invention can run through and have C chamber in described through hole A middle part on described anti-backflow mode basis in valve body, in valve body, be provided with valve seat C, valve seat C is positioned at C chamber, valve seat C port is communicated with described through hole B, and valve body is provided with valve seat C electromagnetism and opens and closes member, and this electromagnetism opens and closes member and is provided with coil (20), in guide pin bushing in coil, be provided with secured core and movable core, between secured core and movable core, be provided with spring, movable core front end is connected with cap B, and cap B is corresponding with valve seat C.Which has solenoid pilot valve member and has the function of anti-described backflow.

While preventing from using described in Sealing B on anti-backflow spool be subject to water impact and shake to make a noise, can have a ring-type buckle at the Sealing B of described anti-backflow spool outer rim latch closure, to prevent described noise.

Optimal way is that described piston outer wall is provided with recess, pull bar B front end is positioned at this recess, described recess, the claw that is positioned at the described pull bar front end of this recess, described piston, the draw-in groove of described pull bar B and the size of described spring are such: pull bar B and piston reset, during cap closed valve seat B, between piston rear end face and pull bar B draw-in groove trailing flank, there is a gap, and there is a gap between the recess leading flank of pull bar B front-end face and piston.So pull bar B resets until cap seals valve seat B, and pull bar is direct pushing piston 13 from start to finish, is conducive to protection and the motion stabilization of relevant movement parts.Form like this has been described, described size can realize for a person skilled in the art, or test can realize through limited number of time, without process creative work.

Below in conjunction with the drawings and specific embodiments, the invention will be further described.

Accompanying drawing explanation

Fig. 1 is one embodiment of the present invention structural representation;

Fig. 2 is a structural representation with anti-backflow spool of the present invention;

Fig. 3 is another structural representation with anti-backflow spool of the present invention;

Fig. 4 is have solenoid pilot valve member, structural representation that manually pilot valve cuts out of the present invention;

Fig. 5 is the structural representation (in figure, main valve is not opened, and is non-working condition) with solenoid pilot valve member, manual pilot valve unlatching of the present invention;

Fig. 6 is the structural representation that the present invention comprises the assembly parts of pull bar B, piston, cap and cushion block;

Fig. 7 is the structural representation of the anti-backflow spool in the present invention.

In figure, be labeled as: 1 valve body, 101 water intakes, 102 water supply chambers, 103 water outlet A, 104 water-supplying chamber, 105 water outlet B, 106 through hole B, 107 valve seat A, 108A chamber, 109 through hole A, 110 valve seat B, 111B chamber, 112 valve seat C, 113C chamber, 114 valve seat D, 115 valve seat E, 2 flaps, 21 other holes, 3 caps, 4 pull bars, 5 seal rings, 6 Returnning spring A, 9 Returnning spring B, 10 sealing gasket B, 11 sealing gasket A, 12 anti-backflow spools, 13 pistons, 131 recesses, 132 claws, 14 springs, 15 pull bar B, 151 draw-in grooves, 152 blind holes, 16 cushion blocks, 17 cap B, 18 movable cores, 19 springs, 20 coils, 21 secured cores, 22 ring-type buckles, gap between H piston rear end face and pull bar B draw-in groove trailing flank, gap between K pull bar B front-end face and the recess leading flank of piston.

Embodiment

Embodiment one

A kind of valve, as Fig. 1 shows, valve body 1 is provided with water intake 101, water supply chamber 102, water outlet A 103, water-supplying chamber 104, valve seat A107, A chamber 108, valve seat B110 and B chamber 111, water intake is communicated with water supply chamber, water outlet is communicated with water-supplying chamber, valve seat A is positioned at water supply chamber, valve seat B is positioned at B chamber, between A chamber and B chamber, lead to and have through hole A109, on valve seat A, be combined with flap 2, on flap, offer other hole 21, this flap back pressure face is positioned at A chamber, on valve seat B, be combined with the keying member that opens and closes valve seat B, this opens and closes member by cap 3, pull bar 4, seal ring 5 and Returnning spring A6 form, cap is positioned at B chamber 111 corresponding with valve seat B110, pull bar front portion is positioned at B chamber and pull bar front end is connected in cap, seal ring is embedded in B cavity rear end portion chamber wall and cover is encapsulated in described pull bar, Returnning spring A is arranged between back end of tie rod and valve body one gear platform, valve body is provided with the water outlet B 105 connecting with atmosphere, in valve body, offer through hole B106, through hole B one end is communicated with B chamber 111, the through hole B the other end is communicated with water outlet B 105.

Valve seat A and flap form main valve, and the keying member of valve seat B and keying valve seat B forms manual pilot valve.

Water enters from water intake 101, other hole 21 by water supply chamber 102 and flap 2 enters A chamber 108, when pull bar 4 resets under Returnning spring A6 effect, during cap 3 closed valve seat B110, A cavity pressure equates with water supply chamber pressure, this pressure makes flap press down closed valve seat A, and the main current that flow to water outlet A are blocked.When pull bar 4 is pulled rearward the moving Returnning spring A pressure that overcomes, cap 3 B that lifts off a seat, water in A chamber flows into B chamber 111 by through hole A109, water in B chamber flows to water outlet B 105 by through hole B106 and discharges, the pressure release of A chamber, and water supply chamber 102 pressure are greater than A cavity pressure, flap 2 lifts, valve seat A opens, and the water of water supply chamber flow to water-supplying chamber 104 by valve seat A107, then flows out by water outlet A 103.

This valve pull rod 4 front portions and cap 3 are positioned at B chamber 111, on the rear chamber wall of B chamber, embedded seal ring 5 cover cards are sealed in pull bar perisporium, pull bar rear portion is positioned at atmosphere environment, pressure in B chamber is pull bar direction of retreat to the direction of cap and the anterior active force of pull bar, when B cavity pressure is relatively large, after this active force promotion cap and pull bar, withdrawing the membership valve seat B sealing difficulty even can not be sealed, cause main valve to close difficulty and even can not close, just easily there is this situation in leading type flushing valve of the prior art.With it different be valve of the present invention due to the through hole B106 end that leads to B chamber with pass through open to atmosphere water outlet B 105 and be communicated with, water outlet A connects nozzle and in valve, produces relatively large pressure and can not be delivered to B chamber, thereby can not cause valve seat B to close the problem that difficulty maybe can not be closed, guarantee that main valve opens and closes normal.

Embodiment two

As Fig. 2 shows, this example is different from example is that the keying member of described keying valve seat B is by cap 3 pistons 13, spring 14, pull bar B15, seal ring 5 and Returnning spring A6 form, cap is positioned at B chamber corresponding with valve seat B, piston is positioned at B chamber and piston nose is connected in cap, pull bar B front portion is positioned at B chamber, pull bar B front portion offers blind hole 152, this blind hole hole wall front portion has draw-in groove 151, piston rear end has claw 132, this claw is positioned at described draw-in groove, making pull bar B be pulled rearward piston while moving is pulled back by pull bar B, described spring is in the described blind hole of pull bar B and between piston rear end and blind hole bottom surface.What be different from example also has, in described valve body, be provided with valve seat D114 and valve seat E115, valve seat D is positioned at described water-supplying chamber top, valve seat E is positioned at described water-supplying chamber bottom, and valve seat D port is communicated with valve seat A port, at the region division of water-supplying chamber and valve seat D port, has anti-backflow spool 12, the above and below of anti-backflow spool interlayer is respectively provided with sealing gasket A11 and sealing gasket B10, sealing gasket A is corresponding with valve seat D, and sealing gasket B is corresponding with valve seat E, is provided with Returnning spring B9 below anti-backflow spool.Other structures are identical with upper example.

Pull bar B15 is pulled back, because the claw 132 at piston rear portion is positioned at the draw-in groove 151 of pull bar front portion, pull bar B moves after pulling piston, cap 3 B that lifts off a seat, with upper example in like manner accordingly, the pressure release of A chamber, valve seat A opens, and now current promote anti-backflow spool 12 downwards, the sealing gasket A11 D114 that lifts off a seat, then sealing gasket B10 presses to valve seat E115, and water flows out by water-supplying chamber 104 and water outlet A 103.When pull bar B resets under Returnning spring A effect, pull bar B blind hole 152 bottom surface pushing springs 14, spring-compressed pushing piston 13 reaches, cap 3 closed valve seat B, guiding valve seat A closes.The effect of spring 14 is that the impact force of avoiding pull bar B to reset directly acts on piston, and piston reach is cushioned, and is conducive to relevant movement parts protection and having stable behavior.Referring to Fig. 6 (not considering cushion block 16), pull bar B15 reach is by spring 14 pushing piston 13 reaches, until during cap 3 closed valve seat B, between piston rear end face and pull bar draw-in groove trailing flank, still leave gap H(and there is the as the same of cushion block 16), pull bar B front-end face also leaves a gap K from piston recess 131 front sides, pull bar B15 resets until cap seals valve seat B, and pull bar is direct pushing piston 13 from start to finish.

The function of anti-backflow spool 12, while being that water intake direction pipeline occurs negative pressure because of cutout, anti-backflow spool moves under Returnning spring B9 effect, sealing gasket A11 closed valve seat D114, and water outlet direction pipeline resident water can not be back to water intake direction and pollute.

Embodiment three

As Fig. 3, Fig. 6 show, what this example was different from example two is between described piston rear end and spring, to be provided with cushion block 16.Other structures are identical with example two.So piston reset is more reliable.

Embodiment four

As Fig. 4 shows, being of this example difference example one, the keying member of described keying valve seat B is with the identical of example three but not example one, also be in described through hole A middle part, to run through and have C chamber 113 in valve body, in valve body, be provided with valve seat C112, valve seat C is positioned at C chamber, valve seat C port is communicated with described through hole B106, valve body is provided with valve seat C electromagnetism and opens and closes member, this electromagnetism opens and closes member and is provided with coil 20, in guide pin bushing in coil, be provided with secured core 21 and movable core 18, between secured core and movable core, be provided with spring 19, movable core front end is connected with cap B17, cap B is corresponding with valve seat C.Other structures are identical with example one.

Pilot valve in example one, example two and example three is and only for manual pilot valve, and this example also has and comprises that described valve seat C electromagnetism opens and closes the solenoid pilot valve of member except manual pilot valve.

Embodiment five

What this example was different from example three is in described through hole A middle part, to run through and have C chamber 113 in valve body, in valve body, be provided with valve seat C112, valve seat C is positioned at C chamber, valve seat C port is communicated with described through hole B106, and valve body is provided with valve seat C electromagnetism and opens and closes member, and this electromagnetism opens and closes member and is provided with coil 20, in guide pin bushing in coil, be provided with secured core 21 and movable core 18, between secured core and movable core, be provided with spring 19, movable core front end is connected with cap B17, and cap B is corresponding with valve seat C.Other structures are identical with example three.

This example has described solenoid pilot valve, also has described anti-backflow core.

Embodiment six

This example has a ring-type buckle 22 in Sealing B outer rim latch closure on example five bases.So can prevent main current unlatching, anti-backflow spool moves down, and during sealing gasket B10 closed valve seat E115, sealing gasket B is subject to water impact outer to cause that vibrations produce noise.

Claims

1. a valve, comprise valve body (1), this valve body is provided with water intake (101), water supply chamber (102), water outlet A (103), water-supplying chamber (104), valve seat A(107), A chamber (108), valve seat B(110) and B chamber (111), water intake is communicated with water supply chamber, water outlet is communicated with water-supplying chamber, valve seat A is positioned at water supply chamber, valve seat B is positioned at B chamber, between A chamber and B chamber, lead to and have through hole A(109), on valve seat A, be combined with flap (2), on flap, offer other hole (21), this flap back pressure face is positioned at A chamber, on valve seat B, be combined with valve seat B and open and close member, it is characterized in that described valve body is provided with the water outlet B (105) connecting with atmosphere, in valve body, offer through hole B(106), through hole B one end is communicated with described B chamber, the through hole B the other end is communicated with described water outlet B.

2. valve as claimed in claim 1, it is characterized in that described valve seat B opens and closes member by cap (3), pull bar (4), seal ring (5) and Returnning spring A(6) form, cap is positioned at described B chamber corresponding with described valve seat B, pull bar front portion is positioned at B chamber and pull bar front end is connected in cap, seal ring is embedded in B cavity rear end portion chamber wall and cover is encapsulated in described pull bar, and Returnning spring A is arranged between back end of tie rod and valve body one gear platform.

3. valve as claimed in claim 1, it is characterized in that described valve seat B opens and closes member by cap (3), piston (13), spring (14), pull bar B(15), seal ring (5) and Returnning spring A(6) form, cap is positioned at described B chamber corresponding with described valve seat B, piston is positioned at B chamber and piston nose is connected in cap, pull bar B front portion is positioned at B chamber, seal ring is embedded in B cavity rear end portion chamber wall and cover is encapsulated in pull bar B, Returnning spring A is arranged between pull bar B rear end and valve body one gear platform, pull bar B front portion offers blind hole (152), this blind hole hole wall front portion has draw-in groove (151), piston rear end has claw (132), this claw is positioned at the described draw-in groove of pull bar B, making pull bar B be pulled rearward piston while moving is pulled back by pull bar B, described spring is in the described blind hole of pull bar B and between piston rear end and blind hole bottom surface.

4. valve as claimed in claim 3, is characterized in that being provided with between described piston rear end and spring cushion block (16).

5. the valve as described in claim 1,2,3 or 4, it is characterized in that being provided with in described valve body valve seat D(114) and valve seat E(115), valve seat D is positioned at described water-supplying chamber top, valve seat E is positioned at described water-supplying chamber bottom, valve seat D port is communicated with valve seat A port, region division at water-supplying chamber and valve seat D port has anti-backflow spool (12), the above and below of anti-backflow spool interlayer is respectively provided with sealing gasket A(11) and sealing gasket B(10), sealing gasket A is corresponding with valve seat D, sealing gasket B is corresponding with valve seat E, is provided with Returnning spring B(9 below anti-backflow spool).

6. the valve as described in claim 1,2,3 or 4, it is characterized in that in described through hole A middle part, running through and having C chamber (113) in valve body, in valve body, be provided with valve seat C(112), valve seat C is positioned at C chamber, valve seat C port and described through hole B(106) be communicated with, valve body is provided with valve seat C electromagnetism and opens and closes member, this electromagnetism opens and closes member and is provided with coil (20), in guide pin bushing in coil, be provided with secured core (21) and movable core (18), between secured core and movable core, be provided with spring (19), movable core front end is connected with cap B(17), cap B is corresponding with valve seat C.

7. valve as claimed in claim 5, it is characterized in that in described through hole A middle part, running through and having C chamber (113) in valve body, in valve body, be provided with valve seat C(112), valve seat C is positioned at C chamber, valve seat C port and described through hole B(106) be communicated with, valve body is provided with valve seat C electromagnetism and opens and closes member, this electromagnetism opens and closes member and is provided with coil (20), in guide pin bushing in coil, be provided with secured core (21) and movable core (18), between secured core and movable core, be provided with spring (19), movable core front end is connected with cap B(17), cap B is corresponding with valve seat C.

8. valve as claimed in claim 5, is characterized in that there is a ring-type buckle (22) at the Sealing B of described anti-backflow spool outer rim latch closure.

9. valve as claimed in claim 7, is characterized in that there is a ring-type buckle (22) at the Sealing B of described anti-backflow spool outer rim latch closure.

10. the valve as described in claim 3 or 4, it is characterized in that described piston outer wall is provided with recess (131), pull bar B front end is positioned at this recess, described recess, be positioned at the draw-in groove (151) of the claw (132) of the described pull bar front end of this recess, described piston, described pull bar B and the size of described spring (14) is such: pull bar B and piston reset, during cap 3 closed valve seat B, between piston rear end face and pull bar B draw-in groove trailing flank, there is a gap (H), and there is a gap (K) between the recess of pull bar B front-end face and piston (131) leading flank.