CN201081036Y

CN201081036Y - Self closing water tap when cutting off water

Info

Publication number: CN201081036Y
Application number: CNU2007200583693U
Authority: CN
Inventors: 熊建如; 熊莎莎
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-10-17
Filing date: 2007-10-17
Publication date: 2008-07-02
Anticipated expiration: 2017-10-17

Abstract

The utility model discloses a self closing faucet when water supply is cut off, belonging to the improvement of the water supply network technical field. The utility model comprises the prior: a valve body (19), a handle (12), a rotating shaft of a valve core (9), a movable ceramic chip (2), a fixed ceramic chip (1) and a valve cap (7); and newly increased: a piston cylinder (13), a piston (3), a piston cup (4), a spring (6) and so on. The fixed ceramic chip is fixedly arranged in the valve body; the movable ceramic chip is connected with the rotating shaft of the valve core; diagonal scallop holes (21 and 22) are arranged on the fixed ceramic chip and the movable ceramic chip respectively; the piston cylinder is on the lower end of the rotating shaft of the valve core and inside provided with the piston and the piston cup which are installed by matching; the thrust spring is arranged between the middle of the top of the piston and the inner top of the piston cylinder; the piston, the movable ceramic chip and the fixed ceramic chip are correspondingly arranged from the top down in order; the valve cap (7) covers most of the rotating shaft of the valve core within the valve body and fastens the most of the rotating shaft; the handle is connected with the rotating shaft extending outside the valve body. The utility model is arranged on the water supply network, and the operation is the same with the common water faucet, when users open and forget to close the faucet, the water is supplied next time and the faucet can be automatically closed, thereby avoiding flood.

Description

A kind of water-stopping self-closing water tap

Technical field

The utility model belongs to the technical field of the water tap of installing on the water supply network, specifically is the technological improvement to existing water tap.

Background technique

Existing water tap, there is a kind of structure to be, in valve body, be provided with two ceramics that stack, one is and the fixing definite ceramic chip of valve body, one is can be with the dynamic porcelain piece of handle rotation, and when the small opening correspondence of two ceramics communicated, the water,tap stream of just fetching boiling water passed through, when two ceramics small openings interlace sealing, just close water tap.This water tap one open-one close two states is installed on the water supply network, and just often water is opened, and uses up to shut.Cut off the water if open the back pipe network, forget again and shut, the bad sight in the casual Kingsoft of water will take place when pipe network comes water again.

Summary of the invention

The purpose of this utility model is a kind of water-stopping self-closing water tap of design, solves the above-mentioned phenomenon of metalling run out.

The technical solution of the utility model is, include: valve body, handle, valve core shaft, dynamic porcelain piece, definite ceramic chip, valve gap, also include piston cylinder, piston, piston cup, spring, the valve body internal fixation is installed definite ceramic chip, dynamic porcelain piece links to each other with valve core shaft, on definite ceramic chip and dynamic porcelain piece, have the fan shaped borehole at diagonal angle, in the lower end of valve core shaft is piston cylinder, cooperate in the piston cylinder piston and piston cup are installed, piston cup is enclosed within the outside of piston, in the middle of above the piston and between the piston cylinder inner top thrust spring is set, piston, dynamic porcelain piece and definite ceramic chip are corresponding successively from top to bottom to be arranged, valve gap is buckled in most valve core shaft in the valve body and is fastening with valve body, and handle is connected with the rotating shaft of stretching in the valve body outside.

The space that forms between piston cylinder inside and the piston is the upward pressure chamber, and piston cylinder inner top spool has pore that the upward pressure chamber is communicated with the outside, and the pincushion hole on lower part of piston end face and the dynamic porcelain piece forms the downforce chamber.

The lower end of piston cylinder is provided with driving lever, and the dynamic porcelain piece outer rim is provided with gap, and driving lever cooperates with gap.

The bottom of valve gap is a valve core housing, has the water inlet on valve core housing, and the area of water inlet is greater than fan shaped borehole (osculum) area on moving, the definite ceramic chip, by water inlet around the valve core housing, valve core water outlet.

Working principle of the present utility model is, the water-stopping self-closing water tap is inserted water supply network, owing in the pipe network hydraulic pressure is arranged, pressure is greater than spring force, piston is pushed to the disengaging dynamic porcelain piece, stir handle, when the fan shaped borehole of dynamic porcelain piece communicates at once with the fan shaped borehole of definite ceramic chip, water enters from the water inlet of valve core housing, flows out from fan shaped borehole; Oppositely stir handle, when the fan shaped borehole of dynamic porcelain piece and the fan shaped borehole of definite ceramic chip interlaced sealing, water tap was closed.Pipe network is cut off the water and is not also shut behind the tap of fetching boiling water, and pipe network does not have hydraulic pressure, and spring thrust makes piston closely contact with dynamic porcelain piece, when pipe network comes water again, because the upward pressure chamber and the downforce chamber of piston communicate with atmosphere, so water has only radial pressure to piston, it is motionless that piston keeps, when pulling out handle to the position of closing, the sealing of downforce chamber, upper and lower pressure chamber pressure balance is broken, and hydraulic pressure is pushed piston to, the water,tap of fetching boiling water once more just flows out, and it is normal that work recovers.

The utility model is the improvement of carrying out on the basis of original water tap, and it is few, simple in structure to increase part, and mode of operation is constant, the floods worry that can avoid public place or family to forget to turn off the tap and brought when cutting off the water.

Description of drawings

Fig. 1 is a plan view of the present utility model, and complete section is showed its overall structure;

Fig. 2 is along Figure 1A-A sectional drawing;

Fig. 3 is along Figure 1B-B sectional drawing;

Fig. 4 is along Fig. 1 C-C sectional drawing;

Fig. 5 is along Fig. 1 D-D sectional drawing;

Fig. 6 is along Fig. 1 E-E sectional drawing;

Fig. 7 is along Fig. 1 F-F sectional drawing.

Embodiment

Now describe embodiment of the present utility model in conjunction with the accompanying drawings: the utility model is the ceramics water tap with water-stopping self-closing function, its outward appearance, structure and using method are similar to common ceramics water tap, and mainly the upward pressure chamber 10 of the valve gap 7 that is connected as a single entity by valve body 19, definite ceramic chip 1, dynamic porcelain piece 2, piston cup 4, valve core housing 5, with valve core housing 5, spring 6, rotating shaft 9, the piston cylinder 13 that is connected as a single entity with rotating shaft 9 and driving lever 15, seal ring 11 and 18, handle 12, piston 3 and downforce chamber 17 etc. are formed.As shown in Figure 1, the one: in the rotating shaft of common ceramics water tap, installed a piston cylinder 13 additional, a piston 3 made from pottery is housed in the piston cylinder 13, the top of piston 3 is with a rubber cup 4, lower end surface plays a part sunk pincushion hole 17 (also crying downforce chamber 17) (Fig. 6 sectional view E-E) on the sealing dynamic porcelain piece 2 when cutting off the water, sunk pincushion hole 17 is the downforce chamber 17 of piston 3 just.And the gap between piston cylinder 13 and the piston 3 has just formed the upward pressure chamber 10 of piston 3.The sectional area of pressure chamber equates up and down.The 2nd: because of the needs of water-stopping self-closing, water tap water inlet and outlet water channel is changed, original common ceramics water tap is intake by spool, water outlet around the valve core housing becomes present by water inlet around the valve core housing, spool water outlet.The 3rd: forget when cutting off the water and to close water tap that when pipe network sent water once more, pincushion hole 17 (also the crying downforce chamber 17) of piston 3 sealing dynamic porcelain pieces 2 were blocked current, have avoided the waste of water resources.The 4th: when reusing, only need handle 12 to turn to closed position to clockwise, piston 3 will move on to the top in piston cylinder 13 (upward pressure chamber 10), and water tap returns to the state to be opened of common ceramics water tap.

When the water tap water flowing, water enters around the valve core housing 5 in the valve body 19, is entered by two relative water intakes 14 on the valve core housing 5 again, and piston 3 is produced radial pressures.Because the diagonal angle fan shaped borehole 21 of the water tap dynamic porcelain piece 2 of this moment (is seen Fig. 6 sectional view E-E with the diagonal angle fan shaped borehole 22 of definite ceramic chip 1, Fig. 7 F-F) stagger mutually and be in closed condition in position, so cut off the downforce chamber 17 of piston 3 and the passage of atmosphere, the upward pressure chamber 10 of piston 3 then communicates with atmosphere by passage 8.A low pressure area has just been formed at piston 3 tops like this, and the active force that hydraulic pressure overcomes spring 6 is pushed piston 3 to the top in piston cylinder 13 (upward pressure chamber 10) along driving lever 15 (seeing Fig. 5 sectional view D-D).

Because the projection 23 on the definite ceramic chip 1 is the grooves interior (seeing Fig. 7 sectional view F-F) that are embedded in valve core housing 5, so definite ceramic chip 1 can not rotate.When handle 12 to counterclockwise rotating when opening water tap, drive rotating shaft 9 and the piston cylinder 13 that is connected as a single entity with it and driving lever 15 and rotate together.Because the driving lever 15 of rotating shaft 9 bottoms is two the relative gap interior (seeing Fig. 6 sectional view E-E) that insert dynamic porcelain piece 2, so dynamic porcelain piece 2 also and then rotates, the diagonal angle fan shaped borehole 21 of dynamic porcelain piece 2 is overlapped gradually with the diagonal angle fan shaped borehole 22 of definite ceramic chip 1 and open water tap, water flows out through netted water outlet 16 by the diagonal angle fan shaped borehole 21 and 22 that has overlapped.Owing to when design, taken into account that the area at the mouth of a river 14 (seeing Fig. 5 sectional view D-D) is greater than the area of water outlet (diagonal angle fan shaped borehole 21 and 22), even so water tap is opened, water flows in water tap and also can produce one between dynamic porcelain piece 2 and piston 3 lower end surface and can keep the pressure that piston 3 continues to be in piston cylinder 13 tops.Size as for the water yield depends on the angle that handle 12 is rotated, the utility model is in the end face contacting point (see Fig. 3 sectional view B-B) of rotating shaft 9 with valve core housing 5, be provided with a pair of concavo-convex step 20 of working in coordination respectively, can only in the angular range of 90 degree, rotate with restriction rotating shaft 9.Under the normal situation in water source, piston 3 just is hidden in the top in piston cylinder 13 (upward pressure chamber 10) always.This moment, the Push And Release of water tap all was equivalent to common ceramics water tap.

Cut off the water if run into pipe network, will lose pressure in the water tap, piston 3 moves down under the effect of spring 6, and piston 3 lower end surface can be sealed pincushion hole 17 (also the crying downforce chamber 17) of dynamic porcelain piece 2.When pipe network comes water once more, and water tap is in opening state, and water enters around the valve core housing 5, flowed into by two symmetric inlet mouths on the valve core housing 5 14 again, and piston 3 is produced radial pressures.Since this moment piston about in the of 3 two pressure chambers (10 and 17) all communicate with atmosphere, and two pressure chamber sectional areas equate, so pressure balance on the piston 3, because the effect of piston 3 top springs 6, piston 3 lower end surface still are close on the dynamic porcelain piece 2 and sealing pincushion hole 17 (also crying downforce chamber 17), though open thereby reach water tap, come the purpose that still stops behind the water once more.

When handle 12 turns to the water tap closed position to clockwise direction, the diagonal angle fan shaped borehole 21 of dynamic porcelain piece 2 staggers with the diagonal angle fan shaped borehole 22 of definite ceramic chip 1, cut off piston 3 bottom pressure chambers 17 and led to the passage of atmosphere, hydraulic pressure is just pushed piston 3 to the top low pressure area of the piston cylinder 13 (upward pressure chamber 10) that still communicates with atmosphere by passage 8.The water tap of this moment has been got back to again and the same closed condition of common ceramics water tap.

Should be noted that: the upper end of the upper-end surface of piston 3 lower end surface and the dynamic porcelain piece 2 that contacts with it and the lower end surface of dynamic porcelain piece 2 and the definite ceramic chip 1 that contacts with it all needs polishing plating glaze, makes its surface of contact separately that good sealing function be arranged.The leather cup 4 of piston 3 should manufacture bowl-type in addition, like this ability spreading under the situation of pressure is being arranged, and making it has good sealing with the casing wall of piston cylinder 13.Very little with the friction of casing wall under stress-free situation, even producing incrustation scale, casing wall can not hinder moving up and down of piston 3 yet.

Claims

1. water-stopping self-closing water tap, include: valve body (19), handle (12), valve core shaft (9), dynamic porcelain piece (2), definite ceramic chip (1), valve gap (7), it is characterized in that also including piston cylinder (13), piston (3), piston cup (4), spring (6), valve body (19) internal fixation is installed definite ceramic chip (1), dynamic porcelain piece (2) links to each other with valve core shaft (9), on definite ceramic chip (1) and dynamic porcelain piece (2), have the fan shaped borehole (21 at diagonal angle, 22), in the lower end of valve core shaft (9) is piston cylinder (13), cooperate in the piston cylinder (13) piston (3) and piston cup (4) are installed, piston cup (4) is enclosed within the outside of piston (3), in the middle of above the piston (3) and between piston cylinder (13) inner top thrust spring (6) is set, piston (3), dynamic porcelain piece (2) and definite ceramic chip (1) are corresponding successively from top to bottom to be arranged, valve gap (7) is buckled in most valve core shaft (9) in the valve body (19) and is fastening with valve body (19), and handle (12) is connected with the rotating shaft (9) of stretching outside valve body (19).

2. water-stopping self-closing water tap according to claim 1, it is characterized in that the space that forms between piston cylinder (13) inside and the piston (3) is upward pressure chamber (10), piston cylinder (13) inner top spool has pore (8) that upward pressure chamber (10) are communicated with the outside, and the pincushion hole (17) on the lower end surface of piston (3) and the dynamic porcelain piece (2) forms the downforce chamber.

3. water-stopping self-closing water tap according to claim 1, the bottom that it is characterized in that valve gap (7) is valve core housing (5), on valve core housing (5), have water inlet (14), the area of water inlet (14) is greater than fan shaped borehole (21, the 22) area on moving, the definite ceramic chip (2,1), intake the valve core water outlet on every side by valve core housing (5).