CN100465490C

CN100465490C - Delay self-closing water-saving valve

Info

Publication number: CN100465490C
Application number: CNB2006101613944A
Authority: CN
Inventors: 倪智勤; 章飞; 邱铁平; 刘宏全
Original assignee: Changzhou Vocational Institute of Textile and Garment
Current assignee: Changzhou Vocational Institute of Textile and Garment
Priority date: 2006-12-26
Filing date: 2006-12-26
Publication date: 2009-03-04
Anticipated expiration: 2026-12-26
Also published as: CN101000114A

Abstract

The invention is a delay self-closing water-saving valve, having valve body, valve cap, valve rod and valve core, where water inlet and outlet are arranged in the valve body, the valve cap is composed of upper and lower valve cap parts, the space the upper and lower valve form is equipped with elastic diaphragm dividing it into upper and lower air cavities, the valve rod runs through the upper valve cap, diaphragm and lower valve cap into the valve body, and the lower end of the valve rod is connected with the valve core, the position on the valve rod and between the upper valve cap and diaphragm is equipped with first spring, the valve rod is in sealing and sliding mode connected with the upper and lower valve caps, fixed with the diaphragm, and the center of the diaphragm is made with air hole, one way valve is arranged corresponding to the air hole and equipped with orifice connected with the air hole. And it adopts mutually separate air cavity and water cavity, and controls valve delay self-closing by air flowing in the two cavities, thus avoiding the orifice jam problem and assuring its quality.

Description

Delay self-closing water-saving valve

Technical field

The present invention relates to a kind of delay self-closing water-saving valve

Background technique

Postponing water-saving valve is a kind of valve that can realize the automatic semi-closure of feedwater back time-delay reasonable time, plays the effect of water saving.China's notice of authorization number discloses a kind of adjustable delay auto cut-off water saving valve in the utility model patent specification of CN2103709Y, this water-saving valve has valve body, button, valve rod, Capsule, piston cylinder, cylinder cap, piston, valve block etc., be provided with water-inlet cavity, drain chamber in the valve body, let out passage between piston cylinder and valve body, having and communicate with the drain chamber of valve body.Surround variable volume chamber-time-delay control hydroecium by cylinder cap, piston and piston in cylinder wall, valve rod has axial bore, valve rod is provided with radial hole and the throttle orifice that communicates with axial bore, press the button, the Capsule distortion moves down, the promotion valve rod moves downward, piston rod hollow upper oral part is opened, the press water that comes from the valve inleting water mouth just enters time-delay control hydroecium from the gap between piston and the valve rod, the press water that entering delays time controls hydroecium just promotes piston and down moves together with valve block, valve port is opened, and press water enters drain chamber from water-inlet cavity.After this, owing to remove the sixth of the twelve Earthly Branches by the power on button, then Capsule tries hard to recover the shape of oneself, by moving on the spring band ovable valve stem, by " o " shape circle the piston rod upper oral part is shut rapidly, and press water can not enter time-delay control hydroecium again; Capsule continues to recover the shape of oneself, utilizes elastic force by moving on the valve rod pulling piston, and radial hole, axial bore, the throttle orifice of water on valve rod of time-delay control hydroecium let out passage in flowing into, and valve just begins from closed procedure.Because the flow area of throttle orifice is less, let out slowlyer in the water of time-delay control hydroecium, promptly the speed of moving on the piston is slower, like this, valve block after opening to self-closingly just have-the last valve block of individual sufficient time-delay process is self-closing, water-saving valve work stops.The utility model is to utilize current to come the time of control valve start or stop, promptly through the less throttle orifice of flow area time-delay being controlled by current lets out slow and the time of control valve start or stop in the water of hydroecium, because water-borne glue body particulate and the silt that may exist, the throttle orifice of above-mentioned utility model patent stops up easily, in case stop up, push rod can't reset, and valve just lost efficacy.

Summary of the invention

The objective of the invention is to propose a kind of delay self-closing water-saving valve that utilizes the control damper gate delay to close.

For achieving the above object, the present invention takes following measure: the present invention has valve body, valve gap, valve rod and spool, be provided with water intake and drain opening in the valve body, described valve gap is made up of bonnet and bottom flange, be provided with the elastic diaphragm that divides the space into upper gas chamber and lower air chamber in the seal space that bonnet and bottom flange surround, described valve rod passes bonnet, barrier film, bottom flange stretches in the valve body, the lower end of valve rod is connected with spool, on the valve rod and the position that is between bonnet and the barrier film is provided with first spring, valve rod and bonnet and bottom flange sealed sliding are dynamically connected, and fixedly connected with barrier film, described barrier film central position is provided with pore, corresponding pore place is provided with one-way cock on the barrier film central position, and one-way cock is provided with the throttle orifice that communicates with barrier film central position pore.

Described barrier film comprises disc-shaped diaphragm and the backing plate that is fixed on the disc-shaped diaphragm central position bottom surface, backing plate central authorities are provided with the backing plate boss, backing plate is provided with the valve rod hole that connects the backing plate boss, the backing plate boss is upward through the hole of opening on the diaphragm, valve rod pass the backing plate boss valve rod hole and with this valve rod hole drive fit, the pore and the pore on the disc-shaped diaphragm central position that are on the backing plate of same axis are formed barrier film central position pore, and one-way cock is that sheet is hinged on the backing plate bottom surface.

Described barrier film also comprises the pressing plate that is fixed on above the disc-shaped diaphragm central position, the position of the corresponding backing plate boss of pressing plate is provided with attachment hole, the backing plate boss passes the attachment hole on the pressing plate, pressing plate be provided with disc-shaped diaphragm central position and backing plate on the consistent pore of pore.

Described barrier film comprises disc-shaped diaphragm, be fixed on pressing plate and the backing plate that is fixed on the disc-shaped diaphragm central position bottom surface above the disc-shaped diaphragm central position, pressing plate central authorities are provided with the pressing plate boss, pressing plate is provided with the valve rod hole that connects the pressing plate boss, the position of corresponding pressing plate boss is equipped with attachment hole on disc-shaped diaphragm and the backing plate, the pressing plate boss is passed down through the attachment hole on diaphragm and the backing plate, valve rod pass the pressing plate boss valve rod hole and with this valve rod hole drive fit, be in the pore on the pressing plate of same axis, pore on the disc-shaped diaphragm and the pore on the backing plate are formed barrier film central position pore, and one-way cock is that sheet is hinged on the backing plate bottom surface.

Respectively be provided with seal ring between described valve rod and bonnet, the bottom flange.

Described spool comprises main valve plug and movingly in the main valve plug through hole and be fixedly connected on guide's spool of valve rod bottom, is fixed with the spool pulling yoke on the main valve plug end face that the spool pulling yoke is connected with valve stem slides.

Described spool also comprises and is arranged on second spring that is on the valve rod between spool pulling yoke inner top surface and the guide's spool end face.

Described main valve plug bottom is provided with sealing gasket, and guide's spool passes sealing gasket.

The present invention has following characteristics:

1, the present invention adopts air cavity and water cavity separated from one another, and is self-closing by air-flow flow control valve gate delay in two air cavitys, because what flow in the throttle orifice is air-flow, so there is not the throttle orifice blockage problem, guarantees the quality of this water-saving valve;

2, the present invention has guide's spool, and it is very little to open the needed power of spool, brings convenience to use;

3, the present invention utilizes the diaphragm Pneumatic Transmission, does not produce pressure surge when closing, and water outlet is steady;

4, the present invention is simple in structure, and cost is low, manufacturing, easy to maintenance.

Description of drawings

For the easier quilt of content of the present invention is clearly understood, below the specific embodiment and in conjunction with the accompanying drawings of basis, the present invention is further detailed explanation, wherein

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

Fig. 2 and Fig. 3 are that embodiment 1 is in the schematic representation under the different conditions;

Fig. 4 is the check valve sheet closed condition figure on embodiment's 1 spool;

Fig. 5 is the check valve sheet open mode figure on embodiment's 1 spool;

Fig. 6 is embodiment's 2 partial structurtes schematic representation.

Embodiment

Embodiment 1

Embodiment 1 shown in the accompanying drawing 1 is in closed condition.Present embodiment has valve body 1, valve gap 2, valve rod 3 and spool 4, is provided with water intake g and drain opening h in the valve body 1.Water intake g is arranged on the sidepiece of valve body 1, and drain opening h is arranged on the bottom of valve body 1.

Described valve gap 2 is made up of bonnet 2-1 and bottom flange 2-2, bottom flange 2-2 is threaded with 1 of valve body, the seal space that bonnet 2-1 and bottom flange 2-2 surround promptly is an air cavity, being provided with in this space is fixed is clamped in elastic diaphragm 5 between upper and lower valve gap 2-1, the 2-2, and elastic diaphragm 5 becomes upper gas chamber e and lower air chamber f with the separated by spaces between upper and lower valve gap 2-1, the 2-2.Respectively be provided with valve rod hole on described bonnet 2-1, barrier film 5 and the bottom flange 2-2, the valve rod hole that described valve rod 3 passes bonnet 2-1, barrier film 5, bottom flange 2-2 stretches in the valve body 1, fixedly connected with spool 4 in the lower end of valve rod 3, spool 4 is separated into water-inlet cavity and water chamber with the valve body chamber.On the valve rod 3 and position that is between bonnet 2-1 and the barrier film 5 is provided with first spring 7.

Be slidingly connected between described valve rod 3 and upper and lower valve gap 2-1,2-2,, respectively be provided with

seal ring

8,9 between valve rod 3 and upper and lower valve gap 2-1, the 2-2 for guaranteeing sealing.The setting of

seal ring

8,9 is taked to be provided with circular groove on the valve rod hole hole wall of upper and lower valve gap, and

seal ring

8,9 is embedded in the circular groove.Described valve rod 3 is fixedlyed connected with barrier film 5.

Described barrier film 5 comprises disc-shaped diaphragm 5-1, be arranged on the backing plate 5-3 on the disc-shaped diaphragm 5-1 central position bottom surface and be arranged on pressing plate 5-2 above the disc-shaped diaphragm 5-1 central position, backing plate 5-3 central authorities are provided with backing plate boss 5-31, backing plate 5-3 is provided with the valve rod hole that connects backing plate boss 5-31, the corresponding backing plate boss of diaphragm 5-1 and pressing plate 5-2 5-31 respectively is provided with attachment hole, backing plate boss 5-31 is upward through attachment hole on the diaphragm 5-1 and the attachment hole on the pressing plate 5-2, is connected by screw between the three or pin connects or bonding.Valve rod 3 passes the valve rod hole of backing plate boss 5-31 and with this valve rod hole drive fit valve rod 3 is fixedlyed connected with barrier film 5.The pore that pore that the pore that backing plate 5-3 is provided with, disc-shaped diaphragm 5-1 central position are provided with and pressing plate 5-2 are provided with is formed barrier film 5 central position pore c.Corresponding pore c place is provided with one-way cock 6 on barrier film 5 central positions, one-way cock 6 is hinged on the backing plate 5-3 bottom surface for sheet, one-way cock 6 is provided with the throttle orifice d that connects with barrier film 5 central position pore c, the aperture of throttle orifice d is less than the aperture of pore c, and its size postpones to close the time decision of valve as required.The aperture is little, and then retard time is long.

Described spool 4 comprises main valve plug 4-3 and movingly in main valve plug 4-3 through hole and be fixedly connected on guide's spool 4-4 of valve rod 3 bottoms, be fixed with spool pulling yoke 4-1 on the main valve plug 4-3 end face, spool pulling yoke 4-1 and valve rod 3 are slidingly connected, and are on the valve rod 3 between spool pulling yoke 4-1 inner top surface and the guide's spool 4-4 end face to be provided with the second spring 4-2.Main valve plug 4-3 bottom is provided with sealing gasket 10, and guide's spool 4-4 passes sealing gasket 10.

Principle of the present invention is as follows: valve rod 3 is applied external force upwards spur valve rod 3, drive guide's spool 4-4 lifting and upwards upset of barrier film 5 simultaneously by valve rod 3.Because the diameter of guide's spool 4-4 is little, so only need less power just can spur valve rod 3, the existence of second spring, make main valve plug 4-3 maintenance this moment closed condition, guide valve core 4-4 deviates from (see figure 2) from the through hole of main valve plug 4-3 in the ban, the water of water-inlet cavity flows into water chamber, and the second spring 4-2 is compressed to a certain degree, guide's spool 4-4 lifts spool pulling yoke 4-1 and drives main valve plug 4-3 lifting, valve is opened, and guide's spool 4-4 closes under the effect of the second spring 4-2, because water-inlet cavity communicates with water chamber, the pressure balance of water-inlet cavity and water chamber is so can promote main valve plug 4-3 like a cork.On barrier film 5, lift in the umklapp process, upper gas chamber e volume dwindles gradually and pressure strengthens gradually, because the pressure of upper gas chamber e is greater than the pressure in the lower air chamber f, one-way cock 6 (see figure 5) that is opened, gas in the upper gas chamber e flows to lower air chamber f rapidly by barrier film 5 central position pore c, and barrier film 5 resupinate processes are that the unlatching of valve is very fast very soon.When spool 4 promotes the (see figure 3) that puts in place, upwards upset of barrier film 5, valve rod 3 stops external force and promotes, upper gas chamber e and lower air chamber f pressure tend to balance, one-way cock 6 is closed and promptly is flattened on (see figure 4) on the backing plate, this moment, first spring was in compressive state, need to discharge elastic potential energy, barrier film 5 is overturn downwards, gas in the lower air chamber f enters upper gas chamber e by throttle orifice d, because the restriction of throttle orifice d, the gas slowly in the lower air chamber f enters upper gas chamber e, barrier film 5 drives valve rod 3 slow declines and main valve plug 4-3 is slowly closed, and finally reaches to postpone self-closing effect.

Embodiment 2

In this enforcement, described barrier film 5 comprises disc-shaped diaphragm 5-1, be fixed on pressing plate 5-2 and the backing plate 5-3 that is fixed on the disc-shaped diaphragm 5-1 central position bottom surface above the disc-shaped diaphragm 5-1 central position, pressing plate 5-2 central authorities are provided with pressing plate boss 5-21, pressing plate 5-2 is provided with the valve rod hole that connects pressing plate boss 5-21, the position that disc-shaped diaphragm 5-1 and backing plate 5-3 go up corresponding pressing plate boss 5-21 is equipped with attachment hole, pressing plate boss 5-21 is passed down through the attachment hole on diaphragm 5-1 and the backing plate 5-3, valve rod 3 pass pressing plate boss 5-21 valve rod hole and with this valve rod hole drive fit, be in the pore on the pressing plate 5-2 of same axis, pore on pore on the disc-shaped diaphragm 5-1 and the backing plate 5-3 is formed barrier film 5 central position pore c, and one-way cock 6 is hinged on the backing plate 5-3 bottom surface for sheet.All the other are identical with embodiment 1.

Claims

1, a kind of delay self-closing water-saving valve, has valve body (1), valve gap (2), valve rod (3) and spool (4), be provided with water intake (g) and drain opening (h) in the valve body (1), it is characterized in that: described valve gap (2) is made up of bonnet (2-1) and bottom flange (2-2), be provided with the elastic diaphragm (5) that divides the space into upper gas chamber (e) and lower air chamber (f) in the seal space that bonnet (2-1) and bottom flange (2-2) surround, described valve rod (3) passes bonnet (2-1), barrier film (5), bottom flange (2-2) stretches in the valve body (1), the lower end of valve rod (3) is connected with spool (4), on the valve rod (3) and the position that is between bonnet (2-1) and the barrier film (5) is provided with first spring (7), valve rod (3) is dynamically connected with bonnet (2-1) and bottom flange (2-2) sealed sliding, and fixedly connected with barrier film (5), the central position of described barrier film (5) is provided with pore (c), corresponding pore (c) locates to be provided with one-way cock (6) on barrier film (5) central position, and one-way cock (6) is provided with the throttle orifice (d) that communicates with barrier film (5) central position pore (c).

2, delay self-closing water-saving valve according to claim 1, it is characterized in that: described barrier film (5) comprises disc-shaped diaphragm (5-1) and is fixed on backing plate (5-3) on disc-shaped diaphragm (5-1) the central position bottom surface, backing plate (5-3) central authorities are provided with backing plate boss (5-31), backing plate (5-3) is provided with the valve rod hole that connects backing plate boss (5-31), diaphragm (5-1) is gone up corresponding backing plate boss (5-31) position and is provided with attachment hole, backing plate boss (5-31) is upward through the attachment hole on the diaphragm (5-1), valve rod (3) pass backing plate boss (5-31) valve rod hole and with this valve rod hole drive fit, the pore and the pore on disc-shaped diaphragm (5-1) central position that are on the backing plate (5-3) of same axis are formed barrier film (5) central position pore (c), and one-way cock (6) is hinged on backing plate (5-3) bottom surface for sheet.

3, delay self-closing water-saving valve according to claim 2, it is characterized in that: described barrier film (5) also comprises and is fixed on the pressing plate (5-2) of disc-shaped diaphragm (5-1) above the central position, the position of the corresponding backing plate boss of pressing plate (5-2) (5-31) is provided with attachment hole, backing plate boss (5-31) passes the attachment hole on the pressing plate (5-2), pressing plate (5-2) be provided with disc-shaped diaphragm (5-1) central position and backing plate (5-3) on the consistent pore of pore.

4, delay self-closing water-saving valve according to claim 1, it is characterized in that: described barrier film (5) comprises disc-shaped diaphragm (5-1), be fixed on disc-shaped diaphragm (5-1) above the central position pressing plate (5-2) and be fixed on backing plate (5-3) on disc-shaped diaphragm (5-1) the central position bottom surface, pressing plate (5-2) bottom surface central authorities are provided with pressing plate boss (5-21), pressing plate (5-2) is provided with the valve rod hole that connects pressing plate boss (5-21), the position that disc-shaped diaphragm (5-1) and backing plate (5-3) are gone up corresponding pressing plate boss (5-21) is equipped with attachment hole, pressing plate boss (5-21) is passed down through the attachment hole on diaphragm (5-1) and the backing plate (5-3), valve rod (3) pass pressing plate boss (5-21) valve rod hole and with this valve rod hole drive fit, be in the pore on the pressing plate (5-2) of same axis, pore on pore on the disc-shaped diaphragm (5-1) and the backing plate (5-3) is formed barrier film (5) central position pore (c), and one-way cock (6) is hinged on backing plate (5-3) bottom surface for sheet.

5, according to the described delay self-closing water-saving valve of one of claim 1～4, it is characterized in that: respectively be provided with seal ring (8,9) between described valve rod (3) and bonnet (2-1) and the bottom flange (2-2).

6, according to the described delay self-closing water-saving valve of one of claim 1～4, it is characterized in that: described spool (4) comprises main valve plug (4-3) and movingly in main valve plug (4-3) through hole and be fixedly connected on guide's spool (4-4) of valve rod (3) bottom, be fixed with spool pulling yoke (4-1) on main valve plug (4-3) end face, spool pulling yoke (4-1) is slidingly connected with valve rod (3).

7, delay self-closing water-saving valve according to claim 6 is characterized in that: described spool (4) also comprises and is arranged on second spring (4-2) that is on the valve rod (3) between spool pulling yoke (4-1) inner top surface and guide's spool (4-4) end face.

8, delay self-closing water-saving valve according to claim 6 is characterized in that: described main valve plug (4-3) bottom is provided with sealing gasket (10), and guide's spool (4-4) passes sealing gasket (10).