CN2438879Y

CN2438879Y - Automatic tap

Info

Publication number: CN2438879Y
Application number: CN 00221630
Authority: CN
Inventors: 王文乾
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-09-01
Filing date: 2000-09-01
Publication date: 2001-07-11
Anticipated expiration: 2010-09-01

Abstract

The utility model relates to an automatic water tap which comprises a control circuit, a water inlet pipe, a water outlet pipe and an electromagnetic valve, wherein the control circuit is at least composed of a sensing circuit, a signal processing circuit and an electromagnetic valve driving circuit; the electromagnetic valve is composed of an electromagnet and a valve core. The utility model is characterized in that the connecting position of the water inlet pipe and the water outlet pipe forms an installing cavity of the valve core. The valve core comprises a rubber valve, an iron sheet, a connecting rod, an elastic sealing ring and a fixed ring. The rubber valve is positioned at the orifice of the water outlet pipe, one end of the connecting rod is connected with the rubber valve and the other end is connected with the iron sheet. The middle part of the connecting rod is provided with a groove, an inner circle of the elastic sealing ring is clamped in the groove and an outer circle is fixed by the fixed ring. The space between the elastic sealing ring and the rubber valve is communicated with the water inlet pipe, and the iron sheet is parallel to the magnetic face of the electromagnet. The utility model has the advantages of small size, convenient installation and long service life.

Description

Automatic faucet

The utility model relates to a kind of water tap, is specifically related to a kind of automatic faucet.

The present water tap that uses, major part is manually to open and close, and washes when closing tap behind the hand secondary pollution easily takes place, and causes cross infection easilier when particularly using in public places.For addressing this problem, design a class automatic faucet, comprise control circuit, intake pipe, outlet pipe and the solenoid valve formed by sensing circuit, signal processing circuit and driving circuit for electromagnetic valve, the sensor of sensing circuit is installed on the water tap, remaining part is installed in the control box, this structure automatically the perception human body near and control is supplied water, but because the volume of solenoid valve is bigger, make that the overall volume of autocontrol valve is big, can only be arranged in the control box, it is big to take up room during installation, also influences attractive in appearance.

The utility model purpose provides a kind of volume automatic faucet little, easy for installation.

For achieving the above object, the technical solution adopted in the utility model is: a kind of automatic faucet, comprise control circuit, intake pipe, outlet pipe and solenoid valve, described control circuit is at least by sensing circuit, signal processing circuit and driving circuit for electromagnetic valve are formed, described solenoid valve is made up of electromagnet and spool, the joint of described intake pipe and outlet pipe forms the spool installation cavity, described spool comprises rubber valve, iron plate, connecting rod, elastic sealing ring and retaining ring, rubber valve is positioned at the effluent pipe mouth place, one end of described connecting rod is connected with rubber valve, the other end is connected with iron plate, the middle part of connecting rod has groove, and the inner ring of elastic sealing ring is stuck in the groove, and the outer ring is fixed with retaining ring, elastic sealing ring communicates with intake pipe with space between the rubber valve, and the magnetic face of described iron plate and electromagnet be arranged in parallel.

In the technique scheme, described " sensing circuit " is prior art, and referring to can perception human body or approaching sensor and the interlock circuit of object, as infrared emission circuit and receiving circuit, capacitive induction circuit etc.; Described " driving circuit for electromagnetic valve " comprises according to the relay of adhesive of SC sigmal control solenoid valve and release and power amplification circuit etc.Described " elastic sealing ring " can be made by rubber material.

Further technological scheme, described spool also comprises pad, nut, and described connecting rod is provided with screw thread, and described elastic sealing ring is spacing by pad, nut.

Further technological scheme is provided with groove in the middle of the described iron plate, and the top of connecting rod forms the flat structure and penetrates groove, fixedlys connected with iron plate with pin.

In the technique scheme, be located by connecting by the sleeve pipe of making by non-magnet_conductible material between described electromagnet and the spool installation cavity.Described outlet pipe and spool installation cavity can adjust the relative position of hose nozzle and spool installation cavity by being threaded.

In the technique scheme, can be that described solenoid valve and sensing circuit one are installed, directly constitute water tap with intake pipe, outlet pipe, all the other control circuits be installed in the control box, with between the water tap for being electrically connected; Also can be that described solenoid valve, intake pipe, outlet pipe and control circuit are installed in the control box, the other end of outlet pipe be installed water tap, and the sensor of sensing circuit is installed on the water tap.

Working principle of the present utility model is: when hand or object enter the below of water tap, be installed in the sensor institute perception on the water tap, after signal processing circuit receives the processing amplification, make the solenoid valve adhesive by driving circuit for electromagnetic valve, the tap of fetching boiling water washs; After clean the removing, solenoid valve discharges, and water tap is closed immediately.

Because the utilization of technique scheme, the utility model compared with prior art has following advantage:

1, since the utility model intake pipe communicate with space between elastic sealing ring and the rubber valve, upwarding pressure that the downward pressure that rubber valve is subjected to water and elastic sealing ring are subjected to equates, when the solenoid valve adhesive, mainly overcome the rebounding force that elastic sealing ring draws high, pressure independent with tap water, thereby required suction is little, the size of solenoid valve is little, and the volume of whole water tap is obviously reduced.

2, the setting of pad, nut has guaranteed that elastic sealing ring is limited, can also not alleviate the interior outer rim of elastic sealing ring simultaneously and be subjected to active force owing to the pressure of water is deviate from, and has prolonged working life.

3, be provided with groove in the middle of the iron plate, the structure that connecting rod is fixedlyed connected with iron plate with pin makes both fixedly connected reliable, does not influence the smooth of iron plate and electromagnet adhesive face again.

4, the relative position of effluent pipe mouth and spool installation cavity can be regulated, and initial pressure that can control valve guarantees that the sealing of valve is reliable.

Accompanying drawing 1 is the utility model embodiment one a schematic representation;

Accompanying drawing 2 is the internal structure schematic representation of tap part among Fig. 1;

Accompanying drawing 3 is the utility model embodiment two schematic appearance.

Wherein: [1], control box; [2], intake pipe; [3], outlet pipe; [4], sensor; [5], electromagnet; [6], spool installation cavity; [7], rubber valve; [8], iron plate; [9], connecting rod; [10], elastic sealing ring; [11], retaining ring; [12], groove; [13], pad; [14], nut; [15], groove; [16], pin; [17], sleeve pipe; [18], water tap.

Below in conjunction with drawings and Examples the utility model is further described:

Embodiment one: referring to attached illustrated in figures 1 and 2, a kind of automatic faucet, comprise control circuit, intake pipe 2, outlet pipe 3 and solenoid valve, described control circuit is at least by infrared sensing circuit, signal processing circuit and driving circuit for electromagnetic valve are formed, described solenoid valve is made up of electromagnet 5 and spool, described intake pipe 2 forms spool installation cavity 6 with the joint of outlet pipe 3, described spool comprises rubber valve 7, iron plate 8, connecting rod 9, elastic sealing ring 10, retaining ring 11, pad 13 and nut 14, rubber valve 7 is positioned at the effluent pipe mouth place, one end of described connecting rod 9 is connected with rubber valve 7, the other end is connected with iron plate 8, the middle part of connecting rod 9 has groove 12, the inner ring of elastic sealing ring 10 is stuck in the groove 12, the outer ring is fixing with retaining ring 11, above by pad 13, nut 14 is spacing, elastic sealing ring 10 communicates with intake pipe 2 with space between the rubber valve 7, be provided with groove 15 in the middle of the described iron plate 8, the top of connecting rod 9 forms the flat structure and penetrates groove 15, fixedly connected with iron plate 8 with pin 16, iron plate 8 be arranged in parallel with the magnetic face of electromagnet 5.Be located by connecting by the sleeve pipe of doing by copper 17 between described electromagnet 5 and the spool installation cavity 6.Described outlet pipe 3 and spool installation cavity 6 can adjust the relative position of hose nozzle and spool installation cavity 6 by being threaded.In the each part mentioned above, solenoid valve and sensing circuit one are installed, and directly constitute water tap 18 with intake pipe 2, outlet pipe 3, and all the other control circuits are installed in the control box 1, with between the water tap 18 for being electrically connected.

In the present embodiment, can also realize manual, automatic dual-purpose function by installing manually operated valve additional.

Embodiment two: shown in accompanying drawing 3, a kind of automatic faucet, comprise control circuit, intake pipe 2, outlet pipe 3 and solenoid valve, wherein the structure of solenoid valve and embodiment one are similar, described solenoid valve, intake pipe 2, outlet pipe 3 and control circuit are installed in the control box 1, the other end of outlet pipe 3 is installed water tap 18, and the sensor 4 of sensing circuit is installed on the water tap 18.Present embodiment can be installed in water tap 18 on all kinds of ponds, and control box 1 both can mount on the wall, also can embed within the walls, made outward appearance more attractive in appearance.

Claims

1, a kind of automatic faucet, comprise control circuit, intake pipe [2], outlet pipe [3] and solenoid valve, described control circuit is at least by sensing circuit, signal processing circuit and driving circuit for electromagnetic valve are formed, described solenoid valve is made up of electromagnet [5] and spool, it is characterized in that: described intake pipe [2] forms spool installation cavity [6] with the joint of outlet pipe [3], described spool comprises rubber valve [7], iron plate [8], connecting rod [9], elastic sealing ring [10] and retaining ring [11], rubber valve [7] is positioned at the effluent pipe mouth place, one end of described connecting rod [9] is connected with rubber valve [7], the other end is connected with iron plate [8], the middle part of connecting rod [9] has groove [12], the inner ring of elastic sealing ring [10] is stuck in the groove [12], the outer ring is fixing with retaining ring [11], elastic sealing ring [10] communicates with intake pipe [2] with space between the rubber valve [7], and described iron plate [8] be arranged in parallel with the magnetic face of electromagnet [5].

2, automatic faucet as claimed in claim 1 is characterized in that: described spool also comprises pad [13], nut [14], and described connecting rod [9] is provided with screw thread, and described elastic sealing ring [10] is spacing by pad [13], nut [14].

3, automatic faucet as claimed in claim 1 is characterized in that: be provided with groove [15] in the middle of the described iron plate [8], the top of connecting rod [9] forms the flat structure and penetrates groove [15], fixedlys connected with iron plate [8] with pin [16].

4, automatic faucet as claimed in claim 1 is characterized in that: be located by connecting by the sleeve pipe of being made by non-magnet_conductible material [17] between described electromagnet [5] and the spool installation cavity [6].

5, automatic faucet as claimed in claim 1 is characterized in that: described outlet pipe [3] and spool installation cavity [6] can adjust the relative position of hose nozzle and spool installation cavity [6] by being threaded.

6, as the described automatic faucet of claim 1 to 5, it is characterized in that: described solenoid valve and sensing circuit one are installed, directly constitute water tap [18] with intake pipe [2], outlet pipe [3], all the other control circuits are installed in the control box [1], with between the water tap [18] for being electrically connected.

7, as the described automatic faucet of claim 1 to 5, it is characterized in that: described solenoid valve, intake pipe [2], outlet pipe [3] and control circuit are installed in the control box [1], the other end of outlet pipe [3] is installed water tap [18], and the sensor of sensing circuit [4] is installed on the water tap [18].