CN101377243B

CN101377243B - Faucet capable of automatically closing after cutting off the water supply

Info

Publication number: CN101377243B
Application number: CN2007101462370A
Authority: CN
Inventors: 杨守信
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-08-30
Filing date: 2007-08-30
Publication date: 2010-12-08
Anticipated expiration: 2027-08-30
Also published as: CN101377243A

Abstract

The invention relates to a faucet, which comprises a shell, a valve seat, a handle, a valve stem, a valve core, a water inlet channel, a water outlet channel and a valve stem installation channel; the invention also comprises a spring used to return the valve core to the close location, a ball float valve used to stop the automatic rebounding of the valve core, and a valve core locking device used to lock the valve core at the open position. When the faucet is turned on under the condition of no water supply, the ball float valve bears no buoyancy or pressure of water and is detached from the threaded sealing plug, and the valve core automatically rebounds to the close state under the elastic force of the spring, thus preventing the waste of artesian water when water is supplied; when water supply is suddenly stopped in normal use, the ball float valve bears no buoyancy or pressure of water and falls down and automatically rebounds to the close state under the elastic force of the spring, thus preventing water waste due to that water supply is not readily turned off. The invention is widely applicable to households, hotels and restaurants, and is especially applicable to the locations of centralized water supply, such as large and medium schools, collective apartments, and the like.

Description

The water tap that can close automatically behind a kind of the cutting off the water

Technical field:

The present invention relates to a kind of control valve unit, particularly a kind of water tap

Background technique:

At present, the water tap that family and public place are provided with mostly as US Patent specification US * * * * * * disclosed type, it comprises: assemblies such as housing, valve rod, handle, spool and valve seat, described housing has the intake tunnel, exhalant canal and the valve rod that are interconnected passage is installed, this exhalant canal and valve rod are installed passage not on a center line, handle and spool are loaded on the two ends of valve rod respectively, that part that valve rod is equipped with spool is contained in the installation passage of housing, and realizes the wall of this passage and the sealing between valve rod by stuffing box packing and clamping nut.Handle is positioned at the top of housing, by handle with sleeve valve rod is rotated on a nut, and the rotation of valve rod on nut realizes the lifting of the relative valve seat of spool, thereby realizes opening or closing of water tap.This water tap has been widely used in family and various public place.But, it has following shortcoming when using: the one, under the situation of cutting off the water, a lot of people are unconscious during not water outlet behind the tap of fetching boiling water to close or forgets and close, in case after coming water, nobody in time closes again, particularly, very easily cause the waste of water resources in this situations of the easier appearance in public place such as universities an middle schools, collective apartment, restaurant, hotels; The 2nd, in normal water utilizing process, cut off the water suddenly midway, people often forget and close water tap that when coming water, the people does not exist, and not only causes water resource waste, even can cause the immersion of inside plant to damage.

Summary of the invention:

It is a kind of under the situation of cutting off the water that the problem to be solved in the present invention is to provide, can close automatically behind the tap of fetching boiling water or cut off the water suddenly during normal water after the save-water faucet that can close automatically.

The problems referred to above of the present invention are by providing a kind of water tap with following structure to solve, this water tap comprises: housing, valve seat, handle, valve rod, spool, has the intake tunnel that is interconnected by the realization of the water passage hole on the spool on the described housing, exhalant canal and valve rod are installed passage, described handle is contained in an end of valve rod, described spool is positioned at the other end of valve rod, described valve rod and spool are arranged in described valve rod passage are installed, and this water tap comprises that also is used to control the spring that spool is got back to closed position, one is used to control spool and stops the float valve of automatic resilience and one and decide device with the trivial valve element position that schedules an open position of described spool is trivial.

The top of installing in the passage has the tubular ball float of semicircular projections to described float valve and semicircle shrinkage pool, tubular ball float inner surface recesses, the guide rail of spool both sides and the tubular ball float positioning device below the guide rail of sealing plug lower surface constitutes by being contained in.

Described valve element position is trivial to be decided device and is made of the positioning plate of spool bottom and the positioning plate of lower housing portion internal surface.

The present invention closes water tap automatically and compares with the water tap of prior art and have following advantage: the one, and the tap of when cutting off the water, fetching boiling water, because float valve is not subjected to buoyancy of water and pressure, break away from the sealing plug, spool can bounce back into closed condition automatically under the elastic force effect of spring, prevented to come the waste behavior of flowing automatically behind the water; The 2nd, when normal water, to cut off the water suddenly, float valve loses buoyancy of water and pressure and falls, and spool bounces back into closed condition automatically under spring action, thereby has saved water resources.

Description of drawings:

Embodiments of the present invention are described below with reference to accompanying drawings.

Fig. 1 is the sectional view of water tap of the present invention open mode when not cutting off the water.

Fig. 2 is the stereogram of valve rod and spool.

Fig. 3 is the stereogram (for sealing plug inverted view among Fig. 1) of sealing plug.

Fig. 4 is the stereogram of tubular ball float.

Fig. 5 is an A-A sectional view among Fig. 1.

Fig. 6 is the stereogram (for Fig. 1 medi-spring chamber inverted view) of spring chamber cap.

Embodiment:

Fig. 1 is the sectional view of water tap of the present invention open mode when not cutting off the water.Housing 1 comprises intake tunnel 2, exhalant canal 3 and valve rod installation passage 4, and handle 11 is loaded on valve rod 22 1 ends, and spool 5 is positioned at the other end.The two ends of spring 9 are individually fixed in two apertures of valve rod 22 tops and sealing plug 8.The top of installing in the passage has the tubular ball float 7 of semicircular projections 17 to float valve and semicircle shrinkage pool 19, tubular ball float inner surface recesses 18, the guide rail 15 of spool 5 both sides and the tubular ball float positioning device 14 below the guide rail 15 of sealing plug 8 lower surfaces constitutes by being contained in, tubular ball float 7 fuses by its inner surface recesses 18 and guide rail 15 and valve rod 22, and can do along guide rail 15 relative valve rods 22 and slide up and down.Valve element position is trivial to be decided device and is made of the positioning plate 21 of spool 5 bottoms and the positioning plate 20 of housing 1 lower inner surface, and two positioning plate outers add up to quarter turn, guarantee rotatable 90 ° of spool.By sealing plug 8 and airtight circle 23,24 sealing valve rods passage is installed.

Shown in Figure 1 is the opening state of water tap.Hold handle and turn clockwise 90 °, the water channel of crossing that is positioned at spool 5 overlaps with exhalant canal 3, and water flows out smoothly.At this moment, though spring 9 has elastic force that valve rod 22 is withdrawn into the preceding position of rotation, but because tubular ball float 7 is under buoyancy of water and pressure, the semi-circular recesses 19 of 4 half-circle projection 17 on its top and sealing plug 8 lower surfaces connects and is in the same place, thereby has stoped the rotation of valve rod.In addition owing to seal the semicircle groove that all evenly distributes plug one week of 8 lower surfaces, can valve rod rotation arbitrarily less than 90 ° angle, play the effect of controlled water flow size, and two positioning plates 20 of two positioning plates 21 that are positioned at that one-tenth center, spool 5 bottom is symmetrically distributed and housing 1 lower inner surface, be combined into two 90 ° of circumference mutually because of rising, guaranteed that valve rod 22 can maximum half-twist overlaps with exhalant canal 3 to the water passage hole 13 of spool 5.

When cutting off the water, rotatable handle 11, after surplus current are most, because tubular ball float 7 loses buoyancy of water and pressure, slide to tubular ball float positioning device 14 along guide rail 15, the semi-circular projection 17 on its top is separated with the semi-circular recesses 19 of sealing plug bottom, valve rod 22 only is subjected to spring 9 elastic force to spring back to the origin-location, water passage hole 13 on the spool 5 staggers with exhalant canal 3, and water tap is closed, and finishes automatic pass closed procedure.

Claims

1. water tap, it comprises: housing, handle, valve rod, spool, described housing comprises intake tunnel, exhalant canal and valve rod installation passage, described handle is loaded on valve rod one end, described spool is positioned at the other end, it is characterized in that: this water tap comprises that one is used to control spool and gets back to the spring of closed position (9) and one and be used to control the float valve that spool stops automatic resilience; The two ends of described spring (9) are individually fixed in the aperture (16) on valve rod (22) top and seal in the aperture (25) of plug (8); Described float valve is made of guide rail (15) that is contained in semicircular projections (17) that tubular ball float (7) top in the passage is installed and the semicircle shrinkage pool (19) that seals plug (8) lower surface, tubular ball float inner surface recesses (18), spool (5) both sides and the tubular ball float positioning device (14) below the guide rail (15); Described spool is provided with the water passage hole (13) of a vertical direction; Described spool only rotates in the horizontal direction; This water tap also comprises a valve element position locking device that described spool (5) is locked in an open position.

2. water tap according to claim 1 is characterized in that spring housing (10) top at described spring (9) place is provided with spring chamber cap (12).

3. water tap as claimed in claim 1 is characterized in that: described valve element position locking device is made of the positioning plate (21) of spool (5) bottom and the positioning plate (20) of housing (1) lower inner surface.